Journal articles: 'Os ethmoïde'

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Manus, Jean-Marie. "Ethmoïde/sinus et médecine du travail: un cancer professionnel mal pris en compte ?" Revue Francophone des Laboratoires 2009, no. 417 (December 2009): 106. http://dx.doi.org/10.1016/s1773-035x(09)70318-1.

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Botelho, J., M. Tavares, N. Brock, D. Carvalho, P. Novo, and A. Soares. "Imagerie des variations anatomiques de ĺinsertion crâniale du processus unciné de ĺos ethmoïde." Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale 131, no. 4 (October 2014): A166. http://dx.doi.org/10.1016/j.aforl.2014.07.397.

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Al-Ani, Falah, and Zuhair Amr. "Seasonal prevalence of the larvae of the nasal fly (Cephalopina titillator) in camels in Jordan." Revue d’élevage et de médecine vétérinaire des pays tropicaux 69, no. 3 (February 15, 2017): 125. http://dx.doi.org/10.19182/remvt.31196.

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La prévalence saisonnière des larves de Cephalopina titillator infestant les chameaux a été étudiée à l’abattoir de Ramtha en Jordanie. Parmi les 97 chameaux examinés, 45 étaient infestés (46 %). Des larves ont été retrouvées tous les mois de l’année avec les taux d’infestation les plus élevés en janvier et les plus bas entre mai et juillet. Le nombre de larves observées a varié de 12 à 113 avec une moyenne de 43. La plupart des larves étaient fixées à la muqueuse du nasopharynx et quelques-unes étaient dans la cavité nasale. La plupart des larves de premier stade étaient dans le labyrinthe de l’os ethmoïde, tandis que les larves de deuxième et de troisième stades se trouvaient dans la cavité pharyngienne. Des larves dégénérées étaient aussi présentes dans les sinus naseaux et frontaux.

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Aubin, A., S. Moriniere, P. François, and D. Bakhos. "Cerebrospinal fluid rhinorrhoea revealing an unusual ethmoido-sphenoidal foreign body." Journal of Laryngology & Otology 126, no. 9 (July 12, 2012): 939–41. http://dx.doi.org/10.1017/s0022215112001284.

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AbstractIntroduction:Foreign bodies in the transnasal ethmoido-sphenoidal sinus are uncommon. We present a case of unilateral rhinorrhoea caused by a foreign body which had been lodged in the ethmoido-sphenoidal sinus for 38 years.Case report:A 40-year-old woman presented with unilateral rhinorrhoea. Computed tomography showed a foreign body located in the right ethmoido-sphenoidal sinus, with a defect of the lamina papyracea and the ethmoid roof. The endonasal approach did not permit extraction of the foreign body. A combined approach allowed the extraction of a pen cap, and the defect of the ethmoid roof was rebuilt.Conclusion:Despite its limitations, the endonasal approach remains the treatment of first choice for osteo-meningeal defects, because of its minimal invasiveness and high success rate. However, in the presented case a combined approach was needed.

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Porter, M. J., H. S. Cheung, R. Ambrose, S. F. Leung, and C. A. van Hasselt. "Abnormalities of the paranasal sinuses in patients with nasopharyngeal carcinoma: a computed tomographic study." Journal of Laryngology & Otology 110, no. 1 (January 1996): 23–26. http://dx.doi.org/10.1017/s0022215100132645.

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AbstractA retrospective study of computed tomography scans of the paranasal sinuses of 131 control subjects in Hong Kong revealed minor mucosal abnormalities in more than half of the ethmoid sinuses. Major abnormalities were present in seven per cent of maxillary, five per cent of anterior ethmoid and four per cent of posterior ethmoid sinus. In 85 patients with nasopharyngeal carcinoma the prevalence of minor mucosal abnormalities in the sinuses was similar to that of the control group but major mucosal abnormalities were significantly more common in the anterior and posterior ethmoids at 15 per cent and 21 per cent of the respective sinuses (p<0.001).

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Srinivasan, S., V. I. Nehru, S. B. S. Mann, V. K. Sharma, J. R. Bapuraj, and A. Das. "Study of ethmoid sinus involvement in multibacillary leprosy." Journal of Laryngology & Otology 112, no. 11 (November 1998): 1038–41. http://dx.doi.org/10.1017/s0022215100142410.

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AbstractThe nasal mucosal involvement in lepromatous leprosy is well recognized. Currently interest has centred around the involvement of paranasal sinuses in leprosy. They act as a reservoir and constant source of reinfection to the nasal mucosa. In the present prospective study 25 untreated patients with multi-bacillary leprosy were included. Clinical examination, computed tomography (CT) scan of paranasal sinuses, ethmoid sinus endoscopy and biopsy were carried out in all patients, to investigate the involvement of the paranasal sinuses in leprosy.Ethmoid sinus involvement was noted in 20 patients on CT scan. Bilateral involvement was more common (65 per cent). Anterior ethmoids were more commonly affected (65 per cent). On ethmoid sinus endoscopy abnormal mucosa was noted in 17 patients (68 per cent). Ethmoid sinus biopsy was confirmative in 16 patients (64 per cent). Statistically significant correlation was found between CT findings, sinus endoscopy and sinus biopsy findings.

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Melroy, Christopher T., and Frederick A. Kuhn. "Safety of Ethmoid Sinus Drug-Eluting Catheter Insertion." Otolaryngology–Head and Neck Surgery 139, no. 2_suppl (August 2008): P108. http://dx.doi.org/10.1016/j.otohns.2008.05.544.

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Problem The objective is to develop an instrument which allows a drug-eluting catheter to be safely and reproducibly inserted into the ethmoid sinuses. Methods A trochar-based insertion device was designed to allow delivery of a drug-eluting catheter into the anterior and posterior ethmoid sinuses. It was inserted into 12 cadaveric ethmoid sinuses under endoscopic and fluoroscopic guidance. CT scans were performed pre-, intra-, and post-procedure. The device's position was analyzed and the proximity to the skull base, lamina papyracea, and ethmoid face was measured. The specimens were then dissected and evaluated for skull base, sphenoid face, or lamina papyracea injury. Results The drug eluting catheter system was successfully inserted into the ethmoid sinuses of all 12 cadaver sides without injury to either the medial orbital wall or the skull base as confirmed by post-procedure CT scan and dissection. The final position of the distal tip of the stent averaged 8.1mm (RMS = 3.3) from the skull base, 5.6mm (RMS=3.5) from the sphenoid face, and 5.0mm (RMS=3.5) from the lamina papyracea; the proximal tip was at the face of the ethmoid bulla and 17.1mm (RMS=3.5) below the skull base. Conclusion This study demonstrates that a trochar-based instrument can safely and reproducibly introduce a drug-eluting catheter into the ethmoid sinuses without skull base or lamina papyracea injury. This device may allow safe topical drug delivery into the ethmoid sinuses and provide chronic ethmoid sinusitis patients an alternative to ethmoidectomy. Significance The primary surgical therapy for chronic ethmoid sinusitis is ethmoidectomy; topical therapy has been widely used in the management of chronic ethmoid sinusitis only after ethmoidectomy. This study shows a drug-eluting catheter can be safely and reliably inserted into virgin ethmoid sinuses in order to allow the topical elution of medications into the ethmoids without ethmoidectomy. Support Acclarent supplied cadaveric specimens.

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Kamel, R. H. "Nasal endoscopy in chronic maxillary sinusitis." Journal of Laryngology & Otology 103, no. 3 (March 1989): 275–78. http://dx.doi.org/10.1017/s0022215100108692.

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AbstractThe role of the anterior ethmoids in the pathogenesis of chronic maxillary sinusitis is still a subject of controversy. Although the symptoms of maxillary sinusitis may be clinically dominant, many previous studies have showed that the origin of this disease was, in most cases, located within the anterior ethmoid region.This study included 100 Egyptian patients, suffering from chronic maxillary sinusitis (confirmed by maxillary sinoscopy), who were subjected to ‘systematic nasal endoscopy’. It was found that all cases of chronic maxillary sinusitis were associated with anatomical variations and/or pathological abnormalities of ‘the ostiomeatal area’. It is recommended, therefore, that during the diagnosis and treatment of chronic maxillary sinusitis, attention should be given to the region of the middle meatus and anterior ethmoid complex (or ‘ostiomeatal area’) for any anatomical variations and/or pathological abnormalities in order to avoid recurrence of maxillary sinusitis. This is the basis of the procedure of functional endoscopic sinus surgery.

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Klossek, Jean-Michel, Louis Peloquin, William H. Friedman, Jean-Claude Ferrier, and Jean-Pierre Fontanel. "Diffuse Nasal Polyposis: Postoperative Long-Term Results after Endoscopic Sinus Surgery and Frontal Irrigation." Otolaryngology–Head and Neck Surgery 117, no. 4 (October 1997): 355–61. http://dx.doi.org/10.1016/s0194-5998(97)70126-8.

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Diffuse nasal polyposis remains a challenge despite recent improvements in endonasal surgery. The purpose of this study is to evaluate the results after a radical complete sphe-noethmoidectomy with peroperative and postoperative frontal irrigation in cases of diffuse nasal polyposis. In this prospective study, we include 50 consecutive patients with diffuse nasal polyposis suffering from nasal obstruction, anosmia, and other symptoms of chronic sinusitis. All patients were refractory to medical therapy. In each patient an endoscopic complete sphenoethmoidectomy including total excision of all diseased ethmoid mucosa was performed. Preoperative and postoperative frontal irrigation was performed systematically. The patients were followed closely with serial endoscopic examination, and CT scanning was performed between 2 and 3 years after surgery. There were no complications. Thirty-nine of the 50 patients regained satisfactory olfaction. Partial nasal obstruction persisted in four of the 50 patients. Endoscopically, polyp recurrence was noted in 3% of posterior ethmoids, 23% of anterior ethmoids, and 50% of frontal recesses. We conclude that in cases of refractory and extensive nasal polyposis, a total sphenoethmoidectomy with perioperative frontal irrigation followed by long-term postoperative topical steroid therapy provides excellent improvement or cure with safety and reliability.

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Weinberger, Debra G., Vijay K. Anand, Mouwafak Al-Rawi, Han J. Cheng, and Albert V. Messina. "Surgical Anatomy and Variations of the Onodi Cell." American Journal of Rhinology 10, no. 6 (November 1996): 365–72. http://dx.doi.org/10.2500/105065896781794851.

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Onodi cells are posterior ethmoid cells superolateral to the sphenoid sinus that is intimately associated with the optic nerve. Embryologically, they are derived from ethmoid cells that have undergone dedifferentiation. The anatomic relationship of the Onodi cell to the optic nerve and the internal carotid artery has not been clearly documented in the literature. Forty-four sagittal sections of cadaver heads and 83 CT scans of the sinuses were examined. Case studies of three patients with Onodi cell sinusitis are presented. Two patients underwent endoscopic sinus surgery, and the other chose conservative medical management. The cadaver specimens revealed Onodi cells in 14% (6/44 sections). They were located lateral, superior, or superolateral to the sphenoid sinus. These relationships were further delineated by studying CT scans of the sinuses of 76 patients. Six patients (8%) had Onodi cells. Four of them had a dehiscence of the optic nerve adjacent to the Onodi cell. Twelve patients (16%) demonstrated a dehiscence of the internal carotid artery. These findings have important implications in endoscopic sinus surgery. The anatomic variability of the posterior ethmoids, sphenoid sinus, internal carotid artery, and optic nerve makes this surgical approach particularly challenging.

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Downey, Laura L., Joseph B. Jacobs, and Richard A. Lebowitz. "Anosmia and Chronic Sinus Disease." Otolaryngology–Head and Neck Surgery 115, no. 1 (July 1996): 24–28. http://dx.doi.org/10.1016/s0194-5998(96)70131-6.

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Chronic sinus disease associated with progressive mucosal disease is often a cause for anosmia. Despite aggressive allergic, medical, and surgical intervention, long-term relief of anosmia has been difficult to document. Fifty patients sought treatment for subjective anosmia and symptoms of progressive sinusitis and underwent endoscopic sinus surgery. After surgery 52% maintained significant improvement in smell by subjective measures that correlated with objective olfactory University of Pennsylvania Small Identification test (‘UPSIT’) results. Of the remaining patients, some had intermittent improvement, but most remained hyposmic or anosmic despite clinically well-healed ethmoid surgical beds. Of the preoperative and postoperative historical, clinical, and radiological data analyzed, severity of the presenting sinus disease (defined as stage II in the Kennedy staging criteria or disease extending beyond the ethmoids on preoperative computed tomography scan) and persistent mucosal disease in the surgical bed are associated with persistent anosmia ( p = 0.005).

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Chen, Yue-Shih, Sonja F. Arab, Martin Westhofen, and Johann Lorenzen. "Expression of Interleukin-5, Interleukin-8, and Interleukin-10 mRNA in the Osteomeatal Complex in Nasal Polyposis." American Journal of Rhinology 19, no. 2 (March 2005): 117–23. http://dx.doi.org/10.1177/194589240501900202.

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Background Several cytokines are expressed in chronic sinusitis with and without underlying allergy. Their local production and regulation in the osteomeatal complex, the key area of paranasal sinuses, still is not fully understood. This study was performed to investigate differences of cytokine messenger RNA (mRNA) expression between the medial and the lateral part of the middle turbinate and anterior ethmoid mucosa of allergic and nonallergic patients. Methods Using the LightCycler system for real-time reverse-transcription polymerase chain reaction, we investigated the content of interleukin (IL)-5, IL-8, and IL-10 mRNA in tissue samples from middle turbinates and anterior ethmoids of 18 patients with chronic sinusitis and nasal polyps. Inferior turbinate mucosa of six control subjects without sinusitis and allergy served as control. Results IL-5 mRNA was detectable in 32 (60%) of 54 samples (two of six controls) in significant different amounts between the various locations (p ≤ 0.001). Anterior ethmoid mucosa (0.96 ± 0.99) expressed the highest amount of IL-5 mRNA followed by the lateral (0.37 ± 0.54) and the medial portion of the middle turbinate (0.12 ± 0.29) with no difference between allergic and nonallergic subgroups. IL-8 was detected in significant higher amounts in all three origins with no significant difference in concentrations between the examined locations as compared with controls. Patients expressed either IL-5 or IL-8 or both cytokine mRNA. IL-10 was expressed in all three specimens from five of eight allergic patients. All five individuals with clinical symptoms of allergy at the time of operation expressed IL-10 in at least one specimen. Conclusions IL-5 cytokine expression in the osteomeatal complex is linked to the presence of nasal polyps, whereas IL-8 is up-regulated without distinct correlation to nasal polyps. IL-10 expression was detectable in five of eight allergic patients.

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Bal, Amanjit, Bhumika Gupta, and Rijuneeta Gupta. "Sinonasal Mucormycosis with Fungal Ball: A Rare Case Report." An International Journal Clinical Rhinology 7, no. 2 (2014): 64–66. http://dx.doi.org/10.5005/jp-journals-10013-1197.

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ABSTRACT Invasive mycotic infections can be effectively treated if rapid identification of fungus is obtained. We reported a case of coinfection by Aspergillus and Rhizopus sp. involving nose, paranasal sinuses and orbit in a 51 years old male patient diagnosed as diabetic on admission. He presented to ENT OPD with history of drooping of right upper eyelid, decreased vision right eye and deviation of angle of mouth to left side for 12 days. NCCT nose, PNS and orbit showed soft tissue density in right maxillary sinus, ethmoids and destruction of right inferior turbinate. MRI of nose, PNS and orbit revealed hypointense density in right maxillary and ethmoid sinuses on T1-weighted images and on T2-weighted; it was hyperintense. Patient underwent endoscopic debridement under general anesthesia and tissue was sent for microbiological and histopathological examination which confirmed presence of Aspergillus and Rhizopus. Patient responded to therapy with IV amphotericin B and surgical debridement. On discharge patient's condition was good. How to cite this article Gupta R, Gupta B, Bal A, Gupta AK. Sinonasal Mucormycosis with Fungal Ball: A Rare Case Report. Clin Rhinol An Int J 2014;7(2):64-66.

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Bouguezzi, Adel, Kawthar Souid, Radhia Ben Ali, Souha Ben Youssef, and Abdellatif Boughzala. "Sinusite ethmoïdo-fronto-maxillaire d’origine dentaire." Médecine Buccale Chirurgie Buccale 21, no. 1 (January 2015): 25–29. http://dx.doi.org/10.1051/mbcb/2015004.

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Berens, Angelique M., Greg E. Davis, and Kris S. Moe. "Transorbital Endoscopic Identification of Supernumerary Ethmoid Arteries." Allergy & Rhinology 7, no. 3 (January 2016): ar.2016.7.0167. http://dx.doi.org/10.2500/ar.2016.7.0167.

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Background Anterior and posterior ethmoid arteries supply the paranasal sinuses, septum, and lateral nasal wall. Precise identification of these arteries is important during anterior skull base procedures, endoscopic sinus surgery, and ligation of ethmoid arteries for epistaxis refractory to standard treatment. There is controversy in the literature regarding the prevalence of supernumerary ethmoid arteries. Objective This study examined the prevalence of supernumerary ethmoid arteries by using direct visualization after transorbital endoscopic dissection. Methods Nineteen cadaveric specimens were evaluated by using a superior lid crease (blepharoplasty) incision and an endoscopic approach to the medial orbital wall. Ethmoid arteries were identified as they pierced the lamina papyracea coplanar with the skull base and optic nerve. The distances from the anterior lacrimal crest to the ethmoid arteries and optic nerve were measured with a surgical ruler under endoscopic guidance. Results Thirty-eight cadaveric orbits were measured. Overall, there were three or more ethmoid arteries (including anterior and posterior arteries) in 58% of orbits, with 8% of the total sample that contained four or more ethmoid arteries. The average number of ethmoid arteries was 2.7. Bilateral supernumerary ethmoid arteries were noted in 42% of the specimens. The distance between the anterior lacrimal crest and the anterior ethmoid, posterior ethmoid, and optic nerve averaged 20, 35, and 41 mm, respectively. The average distance to the supernumerary or middle ethmoid artery was 29 mm. Conclusion This study found supernumerary ethmoid arteries in 58% of cadaveric specimens, a prevalence much higher than previously reported. Recognition of these additional vessels may improve safety during endoscopic sinus surgery and skull base surgery, and may permit more effective ligation for refractory epistaxis originating from the ethmoid system.

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Gillman, Grant, and Paul C. Bryson. "Ethmoid schwannoma." Otolaryngology–Head and Neck Surgery 132, no. 2 (February 2005): 334–35. http://dx.doi.org/10.1016/j.otohns.2004.04.027.

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Villaret, Andrea Bolzoni, Marco Bottazzoli, Emanuela Rossi, Maria Grazia Valsecchi, and Piero Nicolai. "Ethmoid Adenocarcinoma." Otolaryngology–Head and Neck Surgery 143, no. 2_suppl (August 2010): P60. http://dx.doi.org/10.1016/j.otohns.2010.06.065.

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Han, Joseph K., Samuel S. Becker, Steven R. Bomeli, and Charles W. Gross. "Endoscopic Localization of the Anterior and Posterior Ethmoid Arteries." Annals of Otology, Rhinology & Laryngology 117, no. 12 (December 2008): 931–35. http://dx.doi.org/10.1177/000348940811701212.

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Objectives: Understanding the endoscopic locations of the anterior and posterior ethmoid arteries is important during endoscopic sinus or endoscopic skull base procedures so that these arteries can be avoided. Therefore, the objective of this study was to define the endoscopic locations of the ethmoid arteries. Methods: Twenty-four cadaver heads were used to identify the endoscopic location of the ethmoid arteries via an external incision. An image guidance system was used to record the locations of these arteries. The anterior ethmoid artery was referenced to the axilla of the middle turbinate, and the posterior ethmoid artery to the anterior wall of the sphenoid sinus. The closest lamella to these arteries was identified. Results: Forty-eight nasal cavities were dissected. The mean distance from the axilla to the anterior ethmoid artery was 17.5 mm. The anterior ethmoid artery was located immediately anterior to (31%), at (36%), or immediately posterior to (33%) the superior attachment of the basal lamella. The mean distance from the posterior ethmoid artery to the anterior ethmoid artery was 14.9 mm. The mean distance from the posterior ethmoid artery to the anterior wall of the sphenoid sinus was 8.1 mm. The posterior ethmoid artery was either anterior to (98%) or at (2%) the anterior face of the sphenoid sinus. Conclusions: Specific endoscopic anatomic relationships and measurements have been presented for the anterior and posterior ethmoid arteries.

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Bonfils, P., P. Avan, P. Palimi, and D. Malinvaud. "Evaluation of mucosal surface reduction after ethmoidal surgery in nasal polyposis." Journal of Laryngology & Otology 121, no. 7 (May 1, 2007): 1–4. http://dx.doi.org/10.1017/s0022215107007967.

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Objectives: To assess the reduction of mucosal surface after total sphenoethmoidectomy.Study design: Prospective study.Methods: Twelve normal, consecutive computed tomography scans were used. Computed tomography measurements were made at two different levels: the cribriform plate, and the upper level of the maxillary antrum. The length of the lateral wall of the ethmoid sinus and the perimeter of each ethmoid cell were measured at each level and on each side. The whole perimeter of the ethmoid sinus was evaluated for each CT scan level. For each side and each level, the ratio between the ethmoid sinus perimeter and the lateral ethmoid wall length was calculated.Results: The mean length of the lateral ethmoid sinus wall was 61.7±1.3 mm and 59.9±1.6 mm at the upper and lower parts of the ethmoid sinus, respectively. The mean ethmoid sinus perimeter was 263.2±11.5 mm and 250.4±11.1 mm at the upper and lower parts of the ethmoid sinus, respectively. No significant statistical difference was observed between measurements as a function of side (right or left) or level (upper or lower). The mean ratio between the ethmoid sinus perimeter and the lateral ethmoid wall length was 4.2.Conclusion: After total sphenoethmoidectomy, the mucosal surface of the ethmoid sinuses is reduced by a factor of 4.2; about 76 per cent of the mucosa is removed during total sphenoethmoidectomy.

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Zacharek, Mark A., Joseph K. Han, Robert Allen, Jane L. Weissman, and Peter H. Hwang. "Sagittal and Coronal Dimensions of the Ethmoid Roof: A Radioanatomic Study." American Journal of Rhinology 19, no. 4 (July 2005): 348–52. http://dx.doi.org/10.1177/194589240501900405.

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Background Understanding the anatomy of the ethmoid roof is critical to safe surgical outcomes. Normative data regarding the height and slope of this region have been somewhat limited, derived primarily from cadaveric coronal computed tomography (CT) studies. With triplanar imaging programs, precise multidimensional measurements of the ethmoid roof are now possible. We present a radioanatomic study to characterize normative sagittal and coronal dimensions of the ethmoid roof. Methods Bilateral measurements were taken in 100 consecutive sinus CT scans using ThinClient 3D software. In the sagittal plane, the height of the ethmoid roof was measured in quadrants at five equidistant points between the frontal beak and sphenoid face, referencing the nasal floor. In the coronal plane, the ethmoid roof was measured at three points at the level of the anterior ethmoid artery and at two points at the junction of the posterior ethmoid and sphenoid sinuses. Results When examined sagittally, the right side showed significantly lower skull base heights in the anterior ethmoid compared with the left side (59.0 mm versus 59.8 mm, p = 0.017; 53.7 mm versus 54.5 mm, p = 0.0004). Coronal measurements of the anterior ethmoid roof showed similar significant differences. The anterior ethmoid roof had greater asymmetries of height compared with the posterior ethmoid roof, which was fairly constant. Conclusion This study provides numerical correlates to accepted concepts regarding the shape and slope of the ethmoid roof. Differences in height of the skull base between right and left sides, especially in the anterior ethmoid sinus, may be an important surgical consideration. The posterior ethmoid roof appears to be relatively constant and should serve as a reliable surgical landmark.

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Agarwal, Anjani, Alpesh Fefar, and Manish Mehta. "A Comparative Study of Endoscopic Finding and Radiological Appearance in Paranasal Sinus Disease." Journal of Medical Research and Innovation 2, S1 (May 11, 2018): e000128. http://dx.doi.org/10.15419/jmri.128.

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Aims and Objectives: The study is carried out with an objective to compare the diagnostic nasal endoscopic findings and radiological appearance in patients with paranasal sinus disease. Methods: 50 cases of chronic sinusitis not responding to routine medical line of treatment were selected and operated after being thoroughly investigated by means of nasal endoscopy and CT scan. Results: Out of 50 cases, 35 underwent bilateral surgery and 15 underwent unilateral surgery, so a total of 85 procedures were carried out. Findings of both the CT scan as well as diagnostic nasal endoscopy were compared to each other and ultimately correlated with operative findings. Conclusion: In our study, a high association is found between both the modalities of investigation i.e CT scan and diagnostic nasal endoscopy with one scoring over the other in different parameters. Diagnostic nasal endoscopy is found to be highly sensitive investigatory modality for parameters like frontal recess, spheno-ethmoid recess and hiatus semilunaris, where as CT scan is found to be highly sensitive for parameters like maxillary sinus, uncinate process and posterior ethmoids. So, a case of sinus disease should be diagnosed as early as possible using both these modalities as together they complement each other. Early diagnosis and effective management cures the pathology and prevents disastrous complications.

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Seizeur, R., P. M. Josselin, G. Potard, I. Quintin Roue, P. Dam Hieu, and G. Besson. "Hémangiome capillaire ethmoïdal." Neurochirurgie 51, no. 5 (November 2005): 543. http://dx.doi.org/10.1016/s0028-3770(05)83588-x.

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Seizeur, R., P. M. Josselin, G. Potard, G. Besson, and P. Dam-Hieu. "Hémangiome capillaire ethmoïdal." Neurochirurgie 52, no. 6 (December 2006): 529–32. http://dx.doi.org/10.1016/s0028-3770(06)71361-3.

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El Kettani, Najwa Ech-Cherif, Abdeljalil El Quessar, My Rachid El Hassani, Noureddine Chakir, and Mohamed Jiddane. "Mucocèle fronto-ethmoïdale." La Presse Médicale 39, no. 5 (May 2010): 612–13. http://dx.doi.org/10.1016/j.lpm.2009.04.013.

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Firat, Ahmet Kemal, Murat Cem Miman, Yezdan Firat, Muammer Karakas, Orhan Ozturan, and Tayfun Altinok. "Effect of nasal septal deviation on total ethmoid cell volume." Journal of Laryngology & Otology 120, no. 3 (December 14, 2005): 200–204. http://dx.doi.org/10.1017/s0022215105007383.

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Background: The aim of this study was to evaluate the effect of nasal septal deviation (NSD) on ethmoid cell volume and to determine whether there was any correlation between NSD grade and ethmoid cell volume.Methods: Forty computerized tomography (CT) scans from patients with rhinosinusitis symptoms with NSD were evaluated. Septal deviations were classified into three groups according to the degree of deviation on CT. Ethmoid cell volumes were measured and the relationship between NSD and ethmoid cell volume was investigated.Results: There was a moderate but significant negative correlation between the septal deviation angle and the percentage of the ethmoid cell volumes (p = 0.001, r = −0.5152, r2 = 0.2654). Total ethmoid cell volume on the ipsilateral side compared with the contralateral side was found to decrease as the degree of NSD increased.Conclusions: Nasal septal deviation affects the total ethmoid cell volume of the nasal cavity. The results of our study underline the role of ethmoid cell volume in the compensation mechanism equalizing the nasal cavity airflow changes due to NSD.

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Bulescu, Ioan Alexandru, Octavian Munteanu, Razvan Stanciulescu, Cosmin Pantu, Mihai Enyedi, Florin Filipoiu, and Vlad Andrei Budu. "Computed-tomography volumetric study of the ethmoid labyrinth." Romanian Journal of Rhinology 7, no. 27 (September 27, 2017): 181–84. http://dx.doi.org/10.1515/rjr-2017-0020.

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AbstractMorphological variability of paranasal sinuses is well known for endoscopic surgeons and anatomists alike. The ethmoid sinus is the most complex and variable of all paranasal sinuses, due to the fact that its development is not yet well known and is influenced by many factors. Volumetric studies of the sinuses have been made using dried skulls, cadaver heads and imaging studies, but there are still not sufficient data in order to name a standard value for each sinus. Few data can be found especially regarding the ethmoid sinus. In this paper, we measured the volumes of ethmoid lateral masses, and for anterior and posterior groups of cells, using imaging studies and a volumetric feature of our imaging studies. Results showed an average volume between 7.34 cm3 and 8.39 cm3for the ethmoid lateral mass, between 4.33 cm3and 4.92 cm3 for the anterior ethmoid and between 3.01 cm3and 3.47 cm3for the posterior ethmoid groups. We also found that the average volume of the anterior ethmoid occupies between 58-59% of the whole volume, while the posterior ethmoid occupies only 41-42% of this volume.

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Dutta, Mainak. "Ethmoid pneumatization and a large frontal-orbital-ethmoid mucocele." Radiology Case Reports 14, no. 3 (March 2019): 419–22. http://dx.doi.org/10.1016/j.radcr.2018.12.011.

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Akamatsu, Maki, Takaya Higaki, Shin Kariya, Aiko Oka, Mitsuhiro Okano, and Kazunori Nishizaki. "Anterior Ethmoid Artery Completely Floating in An Ethmoid Cyst." Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology) 59, no. 4 (2020): 358–62. http://dx.doi.org/10.7248/jjrhi.59.358.

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Wright, Byron E., Jason S. Hamilton, and Ryan F. Osborne. "Malignant Ethmoid Sinus Tumor Masquerading as Chronic Ethmoid Sinusitis." Ear, Nose & Throat Journal 85, no. 12 (December 2006): 814–16. http://dx.doi.org/10.1177/014556130608501209.

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Gorostis, S., M. Bacha, S. Gravier, and T. Raguin. "Fibrose angiocentrique à éosinophiles ethmoïdo-orbitaire droite." Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale 134, no. 5 (October 2017): 336–39. http://dx.doi.org/10.1016/j.aforl.2016.03.010.

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Jiang, Rong-San, Jen-Fu Lin, and Chen-Yi Hsu. "Correlation between bacteriology of the middle meatus and ethmoid sinus in chronic sinusitis." Journal of Laryngology & Otology 116, no. 6 (June 2002): 443–46. http://dx.doi.org/10.1258/0022215021911248.

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In this study we report on the correlation between the bacteriology of the middle meatusand ethmoid sinus in chronic sinusitis. When patients with chronic sinusitis underwent functional endoscopicsinus surgery (FESS), swab specimens were taken from the middle meati before surgery. After removing the ethmoid bullae, swab specimens were taken from the ethmoid sinuses. Between November 1998 and February 2001, 186 pairs of middle meatal and ethmoid sinus specimens were collected from 186 patients. No bacteria were cultured from either specimen in 32 patients. The same bacteria were cultured from both specimens in another 60 patients. The culture results differed between the middle meatal and ethmoid sinus specimens in the remaining 94 patients. There was a significant difference between culture rates of 63.4 per cent for middle meatal specimens and 76.3 per cent for the ethmoid sinus specimens. In analysing bacterial species, significantly more aerobic Gram negative bacteria were cultured from the ethmoid sinus specimens than from the middle meatalspecimens. This study shows that the bacteriology of the middle meatus was different from that of the ethmoid sinus. Therefore, the bacteriological findings in the middle meati may not reflect the real bacteriology in chronic sinusitis.

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Milbrath, Mary M., Gonzalo Madiedo, and Robert J. Toohill. "Histopathological Analysis of the Middle Turbinate after Ethmoidectomy." American Journal of Rhinology 8, no. 1 (January 1994): 37–42. http://dx.doi.org/10.2500/105065894781882710.

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A goal in ethmoid sinus surgery is to ventilate the sinuses by complete removal of all diseased tissue in the ostiomeatal complex. Many surgeons routinely preserve the middle turbinate because they feel it is not part of the disease process and its structure is very important for proper nasal physiology. Other surgeons frequently remove such to facilitate exposure to the ostiomeatal complex and, more importantly, they postulate that it is chronically diseased. This study involved 22 adult patients with CAT scan Stage I:2, II:2, III:5, and IV:13 sinus disease who underwent intranasal ethmoidectomy with resection of the middle turbinate. Three additional turbinate resections performed for other reasons in patients with negative radiological findings served as controls. Histologic findings demonstrated the middle turbinate was chronically diseased to a similar degree as the ethmoids in all 22 patients. Respiratory mucosa without significant pathologic change was found in the controls. This suggests resection of the middle turbinate may be essential, especially in CA T scan Stage III and IV disease. Persistent disease in the middle turbinate may enhance the tendency for synechia formation with the lateral nasal wall and may also account for failure to relieve symptoms in some patients. The question of reversibility of disease in the middle turbinate following ostiomeatal complex surgery remains unanswered.

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Mousaviagdas, Mehrnoosh, Nikzad Shahidi, Shima Majidi, and Zhila Khamnian. "Asymmetry of Height and Width of Ethmoid Sinus and Its Association with Chronic Sinusitis: A Cross Sectional Study." Galen Medical Journal 9 (July 7, 2020): 1748. http://dx.doi.org/10.31661/gmj.v9i0.1748.

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Background: In this study, we aimed to investigate the association between chronic anterior sinusitis with the width and height of ethmoid sinus and also assess the ethmoid length and roof asymmetry in the Iranian adult population. Material and Methods: This cross-sectional study was carried out on 422 patients who were referred with clinical signs of rhinosinusitis to the ENT Center of Tabriz University of Medical Sciences. Study participants were divided into healthy and sinusitis groups based on the level of sinus involvement. Computed tomography images were applied to calculate ethmoid height and width. A paired t-test was used to assess the roof and width asymmetry and an independent t-test was used to investigate the association between ethmoid height and width with the incidence of rhinosinusitis. Results: The mean age of sinusitis and healthy groups was 42.5±18.9 and 38.4±17.1 years, respectively. Of a total 422 subjects, 63.4% of whom were men. The overall prevalence of rhinosinusitis was 28.0%. We observed a statistically significant difference in terms of ethmoid height, and in both healthy and sinusitis group right ethmoid roof was statistically lower (P<0.05). However, no statistical difference was observed between the left and right side regarding the ethmoid sinus width (P>0.05). We also estimated correlation coefficients for rhinosinusitis score and ethmoid sinus height and width, which were not statistically significant (P>0.05). Conclusion: Our study shows that the right side of the ethmoid roof was lower in comparison to the left side, and it should be fully understood and regarded in rhino sinus surgery. We also observed no association between sinusitis score and height and width of the ethmoid sinus. [GMJ.2020;9:e1748]

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OWENJR, R., and F. KUHN. "Supraorbital ethmoid cell." Otolaryngology - Head and Neck Surgery 116, no. 2 (February 1997): 254–61. http://dx.doi.org/10.1016/s0194-5998(97)70337-1.

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Yang, Zao, Ravindra Uppaluri, and James S. Lewis. "Ethmoid Sinus Mass." JAMA Otolaryngology–Head & Neck Surgery 141, no. 4 (April 1, 2015): 389. http://dx.doi.org/10.1001/jamaoto.2015.22.

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Jang, David W., Vasileios A. Lachanas, Lauren C. White, and Stilianos E. Kountakis. "Supraorbital Ethmoid Cell." Otolaryngology–Head and Neck Surgery 151, no. 6 (September 25, 2014): 1073–77. http://dx.doi.org/10.1177/0194599814551124.

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Armengot, M., R. Barona, L. Garín, V. Sabater, and J. Basterra. "Ethmoid Cholesterol Granuloma." Otolaryngology–Head and Neck Surgery 109, no. 4 (October 1993): 762–65. http://dx.doi.org/10.1177/019459989310900422.

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Tringali, S., C. Philippe, Y. Benchemam, J. M. Dumollard, and P. Seguin. "Tumeur triton ethmoido-nasale." Revue de Stomatologie et de Chirurgie Maxillo-faciale 106, no. 2 (April 2005): 99–102. http://dx.doi.org/10.1016/s0035-1768(05)85818-8.

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Kumar, N. Vinay, E. Kamala, T. S. Guga Priya, and S. D. Nalina Kumari. "A COMPUTERIZED TOMOGRAPHIC STUDY OF UNCINATE PROCESS OF ETHMOID BONE." International Journal of Anatomy and Research 3, no. 1 (March 31, 2015): 917–21. http://dx.doi.org/10.16965/ijar.2015.114.

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Antohe, Dşt, H. Varlam, and P. Bordei. "Particularités anatomiques de la jonction fronto-ethmoïdo-sphenoïdale." Morphologie 89, no. 287 (December 2005): 190–91. http://dx.doi.org/10.1016/s1286-0115(05)83309-0.

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Benafla, S., K. Chikh, D. Mansouri, and M. Mehadji. "Méningiome psammomateux ethmoïdo-nasal. À propos d’un cas." Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale 130, no. 4 (October 2013): A118. http://dx.doi.org/10.1016/j.aforl.2013.06.377.

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Caughey, Robert J., Mark J. Jameson, Charlie W. Gross, and Joseph K. Han. "Anatomic Risk Factors for Sinus Disease: Fact or Fiction?" American Journal of Rhinology 19, no. 4 (July 2005): 334–39. http://dx.doi.org/10.1177/194589240501900402.

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Background Sinonasal anatomic variants have been postulated as a risk factor for sinus disease. Therefore, a study was conducted to examine the correlation of sinus disease to septal deviation, concha bullosa, and infraorbital ethmoid cells. Methods Two hundred fifty consecutive sinus and orbital computed tomography scans were examined at the University of Virginia over a 2-year period. Coronal, sagittal, and axial views were examined for the presence and size of concha bullosa and infraorbital ethmoid cells. Septal deviations were measured by examining the width of the nasal cavity at the level of the maxillary sinus ostium. The severity of mucosal thickening in the maxillary, ethmoid, and frontal sinuses was recorded. The correlation between mucosal disease of the sinuses to the anatomic variants was then compared. Results Computed tomography images were reviewed in 250 consecutive studies (500 sides). Of the 500 sides, 67.2% of sides had some level of mucosal thickening. Concha bullosa and infraorbital ethmoid cells were both present in 27% of the sides. Concha bullosa was associated with maxillary sinus disease (p < 0.01). Infraorbital ethmoid cells were associated with both ethmoid (p < 0.05) and maxillary (p < 0.01) mucosal disease. Frontal sinus disease had no significant correlation with these anatomic variants (p > 0.05). For sinuses with infraorbital ethmoid cells or concha bullosa, there were a higher number of diseased sinuses with larger anatomic variants (p < 0.01). Narrow nasal cavities were associated with maxillary sinus disease (p < 0.01). Conclusion Septal deviations, concha bullosa, and infraorbital ethmoid cells, which contribute to the narrowing of the osteomeatal complex, are associated with mucosal disease.

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Jiang, Rong-San, Chen-Yi Hsu, and Jenn-Fuh Leu. "Bacteriology of Ethmoid Sinus in Chronic Sinusitis." American Journal of Rhinology 11, no. 2 (March 1997): 133–38. http://dx.doi.org/10.2500/105065897782537179.

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This study was designed to study the bacteriology of the ethmoid sinus in chronic sinusitis with a new sampling method to decrease nasal contamination. The anterior nose was disinfected with povidone-iodine solution. Then, the sample of ethmoid sinus was obtained with a cotton-tip stick through a cannula that was put into the ethmoid cavity after removing ethmoid bulla. Thirty-nine patients of chronic sinusitis were included with a total of 69 specimens. Fifty-eight bacterial isolates were recovered. The cultural rate was 60.9%. The most frequently isolated bacteria were Streptococcus viridans, Klebsiella pneumoniae, Proteus mirabilis, and Hemophilus parainfluenzae. Conversely, only three isolates of Staphylococcus epidermidis were obtained. The results show that the new sampling method used in this study could decrease the chance of nasal contamination and might, at the same time, make the study of the bacteriology of the ethmoid sinus more accurate.

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Jiang, Rong-San, Chen-Yt Hsu, and Jinq-Wen JANG. "Bacteriology of the maxillary and ethmoid sinuses in chronic sinusitis." Journal of Laryngology & Otology 112, no. 9 (September 1998): 845–48. http://dx.doi.org/10.1017/s0022215100141866.

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AbstractThe bacteriology of chronic sinusitis was studied by using swab and mucosalspecimens from both the maxillary and ethmoid sinuses. The specimens of the maxillary sinus were taken through translabial antroscopy. The specimens of the ethmoid sinus were taken after removing the ethmoid bulla during functional endoscopic sinus surgery (FESS). Eighty-six samples of each type of specimen were collected. Among the maxillary sinus samples, the culture rate was 60.5 per cent from the swab specimens and 36 per cent from the mucosal specimens. Among the ethmoid sinus samples, the culture rate was 58.1 per cent from the swab specimens and 75.6 per cent from the mucosal. The p-value by the Chi-Square test is higher than 0.01 (p =0.015). As there were more isolates ofStaphylococcus epidermidisfrom the mucosal specimens, they are not a better choice of specimen for sampling the ethmoid sinus than a swab specimen.

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Takimoto, Toru, Makoto Itoh, and Hideaki Katoh. "Small Ethmoid Osteoma Causing Headache by Compressing the Anterior Ethmoid Nerve." Practica Oto-Rhino-Laryngologica 85, no. 10 (1992): 1599–602. http://dx.doi.org/10.5631/jibirin.85.1599.

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Gore, Mitchell R. "The supraseptal ethmoid sinus cell: A previously unreported ethmoid sinus variant." Clinical Case Reports 7, no. 7 (May 20, 2019): 1306–8. http://dx.doi.org/10.1002/ccr3.2215.

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Jiang, Rong-san, and Chen-yi Hsu. "Bacteriology of Chronic Sinusitis after Ampicillin Therapy." American Journal of Rhinology 11, no. 6 (November 1997): 467–72. http://dx.doi.org/10.2500/105065897780914983.

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The bacteriologies of the maxillary and ethmoid sinuses were studied in 74 chronic sinusitis patients who took ampicillin (500 mg every 6 hours) for 2 weeks preoperatively. The specimens from one ipsilateral maxillary and ethmoid sinuses were obtained when undergoing functional endoscopic sinus surgery. In 74 specimens of the maxillary sinus, 38 bacterial isolates were recovered. The culture rate was 46.0%. On the other hand, 34 bacterial isolates were taken from the ethmoid sinus specimens. The culture rate was 41.9%. As compared with a previous group who did not take any antibiotic preoperatively, the culture rate significantly decreased in the maxillary as well as the ethmoid sinus specimens. Not surprisingly, a significantly decreased sensitivity to ampicillin was also found in the recovered bacteria from both the maxillary sinus (23.7%) and ethmoid sinus (5.9%) specimens. These results demonstrate that antibiotic therapy with ampicillin could eradicate most sensitive bacteria in chronic sinusitis. However, persistence of resistant bacteria was demonstrated.

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Gulati, Ankit, Priya Malik, and Shehbaaz Singh Virk. "Foreign Body Ethmoid: An Unusual Presentation." An International Journal Clinical Rhinology 7, no. 3 (2014): 130–31. http://dx.doi.org/10.5005/jp-journals-10013-1213.

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ABSTRACT A patient with 8 cm long penetrating wooden foreign body in the left ethmoid which was lying along the long-axis of ethmoid is presented. It was successfully managed. Investigation and management strategy is discussed. How to cite this article Kakkar V, Virk SS, Sharma C, Malik P, Bishnoi S, Gulati A. Foreign Body Ethmoid: An Unusual Presentation. Clin Rhinol An Int J 2014;7(3):130-131.

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Mudry, A., W. Lübbers, and W. Pirsig. "One hundred years ago: the physician magician Blakesley presented his ethmoid forceps." Journal of Laryngology & Otology 130, no. 12 (December 2016): 1086–92. http://dx.doi.org/10.1017/s0022215116009245.

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AbstractBackground:The Blakesley fenestrated ethmoid forceps, eponymously named after Theodore Seward Blakesley, belong today in every set of endonasal surgical instruments. This study aimed to go back to Blakesley's original description, and to follow its introduction, variations and acceptation by rhinosurgeons.Method:Historical review of literature.Results:In 1915, Blakesley described two nasal instruments: a submucous septum resection instrument and an ethmoid instrument. The history of the ethmoid instrument is in close relationship to another quite similar one described by Moriz Weil. The difference between the Weil and the Blakesley ethmoid forceps lies essentially in the base of the cutting jaws, which are narrower in Weil's instrument.Conclusion:Blakesley's eponym must only be used for the instrument without the narrower base of the cutting jaws.

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Bortoli, Vinicius, Rafael Martins, and Krystal Negri. "Study of Anthropometric Measurements of the Anterior Ethmoidal Artery using Three-dimensional Scanning on 300 Patients." International Archives of Otorhinolaryngology 21, no. 02 (February 13, 2017): 115–21. http://dx.doi.org/10.1055/s-0037-1598598.

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Introduction The anterior ethmoidal artery (AEA) is one of the main arteries that supply both the nasal mucosa and the ethmoid sinuses. The AEA shows variability regarding its distance from adjacent structures. Several studies have developed techniques to identify the AEA. Objective This study aimed to compare the measurements from the AEA to the ethmoid bulla and to the frontal beak by using computed tomography of the face, while identifying their intraindividual and interindividual variations. Methods We analyzed 300 CT scans of the face performed at the CT scan Center at Hospital. The average age of subjects was 36 ± 15.1 years (range 4–84). Results We found that the average distance from the AEA to the ethmoid bulla was 17.2 ± 1.8 mm and the distance from the AEA to the frontal beak was 15.1 ± 2.2 mm. Regarding the average distance from the AEA to the frontal beak (AEA-frontal beak), there was a difference between the right and left sides, with the former being 0.4 mm higher on average than the latter. Among the age groups, there was a significant difference of distances between the AEA and the ethmoid bulla (AEA-ethmoid bulla), which were shorter in the ≤ 12 years group. There was a positive and significant correlation between both measurements analyzed, with low values (high) of AEA-ethmoid bulla distance corresponding to low values (high) of AEA-frontal beak distance. Conclusion The measurements obtained adds anatomical knowledge that can serve as a parameter in frontal and ethmoid sinus surgery.

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Journal articles on the topic 'Os ethmoïde'

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