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Journal articles on the topic 'Renal parenchyma'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Konova, A. V. "Dynamics of renal parenchymal thickness in hydronephrosis patients before and after surgery." Siberian Medical Review 5 (2021): 61–66. http://dx.doi.org/10.20333/25000136-2021-5-61-66.

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Aim of study. To reveal changes in renal parenchymal thickness in hydronephrosis patients before and after surgery depending on the patient’s age. Materials and methods. Archived medical histories of 350 patients after surgery for congenital hydronephrosis within 1990-2020 were studied. The age of patients at the moment of surgery varied from one month to 18 years. The dynamics of change in the parenchymal layer thickness of the impaired kidney was evaluated based on ultrasound protocols of kidney scanning before and after the surgery. Results. The maximum decrease in renal parenchyma before s

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Ryumshina, N. I., I. V. Zyubanova, A. E. Sukhareva, et al. "Associations between MRI signs of kidney parenchymal changes and biomarkers of renal dysfunction in resistant hypertension." Siberian Journal of Clinical and Experimental Medicine 37, no. 1 (2022): 57–66. http://dx.doi.org/10.29001/2073-8552-2022-37-1-57-66.

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Objective. Resistant hypertension (RHT) is often associated with kidney injury and chronic kidney disease, especially in diabetic patients. Early detection of renal changes contributes to avoiding severe cardiovascular complications, but imaging characteristics of renal dysfunction in RHT remain unclear. The aim of the present study was to determine the relationships between the renal parenchyma volumes and biomarkers reflecting kidney function in a cohort of patients with RHT.Material and Methods. The study comprised 34 patients with RHT meeting the inclusion criteria. Evaluation of renal fun

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3

Mukhametdinova, Landysh M., Munir G. Tukhbatullin, and Elena E. Fomina. "THE IMPORTANCE OF ULTRASOUND EXAMINATION OF RENAL ALLOGRAFT." Acta medica Eurasica, no. 2 (June 25, 2024): 27–33. http://dx.doi.org/10.47026/2413-4864-2024-2-27-33.

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Kidney transplantation is an effective method of treating patients with end-stage chronic renal failure, as it improves the quality of life and has advantages in patient survival compared with dialysis methods of substitutive renal therapy. To date, ultrasound examination (ultrasound) is the most common diagnostic method for assessing the morphological state of a kidney transplant. Shear wave ultrasound elastography serves as an additional method for assessing the stiffness of the renal allograft parenchyma and early diagnosis of its dysfunction. The aim of the study was to determine the corre

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4

Rajesh, Arumugam, George Jakanani, Nick Mayer, and Kevin Mulcahy. "Computed Tomography Findings in Xanthogranulomatous Pyelonephritis." Journal of Clinical Imaging Science 1 (August 27, 2011): 45. http://dx.doi.org/10.4103/2156-7514.84323.

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Background: Xanthogranulomatous pyelonephritis (XGN) is an uncommon condition characterized by chronic suppurative renal inflammation that leads to progressive parenchymal destruction. Purpose: To review the computed tomography (CT) findings of patients diagnosed with XGN. Materials and Methods: A retrospective review of CT findings in patients with histologically proven XGN was carried out. Results: Thirteen CT examinations of 11 patients were analyzed. Renal enlargement was demonstrable on the affected side in all patients. Nine patients (82%) had multiple dilated calyces and abnormal parenc

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Proskura, A. V., V. V. Borisov, D. V. Butnaru, et al. "Dynamics of the functioning renal parenchyma volume and functions of each kidney before and after resections for renal tumors." Urology and andrology 10, no. 3 (2022): 5–11. http://dx.doi.org/10.20953/2307-6631-2022-3-5-11.

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Objective. To assess functions of each kidney in dynamics using mathematical analysis of contrast-enhanced computed tomography findings in patients with unilateral kidney tumors. Patients and methods. We present preliminary results of a prospective study within the protocol "Assessment of the functioning renal parenchyma volume and functions of each kidney in patients with tumors before and after resection" conducted in the Institute of Urology and Human Reproductive Health, I.M.Sechenov First Moscow State Medical University. This study included 20 patients of both sexes who had undergone rese

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VARINI, CLAUDIO, ANDREA DAMI, TOMMASO VALENZA, et al. "Pefloxacin penetration of renal parenchyma." Journal of Antimicrobial Chemotherapy 29, no. 1 (1992): 86–88. http://dx.doi.org/10.1093/jac/29.1.86.

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7

Prassopoulos, P., N. Gourtsoyiannis, D. Cavouras, and N. Pantelidis. "CT Evaluation of Compensatory Renal Growth in Relation to Postnephrectomy Time." Acta Radiologica 33, no. 6 (1992): 566–68. http://dx.doi.org/10.1177/028418519203300614.

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In 27 patients nephrectoraized for renal carcinoma, the compensatory hypertrophy of the remaining kidney was assessed by 72 CT examinations performed one month before and during 32 months after nephrectomy. Kidney size was estimated on CT by multiple measurements of the renal parenchymal thickness. Kidney growth was evaluated by comparing the amount of renal parenchyma before and after contralateral nephrectomy. Renal compensatory hypertrophy varied with postnephrectomy time. Kidney enlargement was 15% in the first 3 months, reached maximum 30% about a year later, and was reduced to 5%, 2 1/2

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8

Kuznetsov, S. A., V. V. Sizonov, I. I. Belousov, and A. S. Podrezova. "Kidney cancer in a 14-year-old child: a rare clinical case description." Urology Herald 12, no. 6 (2025): 59–66. https://doi.org/10.21886/2308-6424-2024-12-6-59-66.

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Kidney tumours are among the most common solid malignant pathologies in children, accounting for 6 % of all childhood malignancies. About 89 % of these tumors are nephroblastomas (Wilms' tumors). Renal cell carcinoma in children is extremely rare, representing less than 1 % of all renal tumor pathologies in childhood and adolescence. Given the rarity of this pathology in children and the small size of neoplasms in the renal parenchyma, differential diagnosis between renal cancer and cystic renal lesions can be challenging. This clinical case describes a successful treatment case of a 14-year-o

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9

Park, H. C., K. Yasuda, B. Ratliff, et al. "Postobstructive regeneration of kidney is derailed when surge in renal stem cells during course of unilateral ureteral obstruction is halted." American Journal of Physiology-Renal Physiology 298, no. 2 (2010): F357—F364. http://dx.doi.org/10.1152/ajprenal.00542.2009.

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Unilateral ureteral obstruction (UUO), a model of tubulointerstitial scarring (TIS), has a propensity toward regeneration of renal parenchyma after release of obstruction (RUUO). No information exists on the contribution of stem cells to this process. We performed UUO in FVB/N mice, reversed it after 10 days, and examined kidneys 3 wk after RUUO. UUO resulted in attenuation of renal parenchyma. FACS analysis of endothelial progenitor (EPC), mesenchymal stem (MSC) and hematopoietic stem (HSC) cells obtained from UUO kidneys by collagenase-dispersed single-cell suspension showed significant incr

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10

Al’-Shukri, S. Kh, M. S. Mosoyan, D. Yu Semyonov, A. M. Esayan, and D. M. Il’In. "NEW METHOD OF PARTIAL NEPHRECTOMY WITH SELECTIVE PARENCHYMA CLAMPING." Grekov's Bulletin of Surgery 174, no. 4 (2015): 62–66. http://dx.doi.org/10.24884/0042-4625-2015-174-4-62-66.

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The authors suggested a new method of performance of open, laparoscopic and robot-assisted partial nephrectomy using specially developed instruments for selective parenchyma clamping in order to improve the functional results of renal cell carcinoma treatment. The operation with clamping of renal vessels was carried out in 86 cases and clamping of renal parenchyma was used in 24 cases. It was shown, that the open, laparoscopic and robot-assisted partial nephrectomy could be safely performed in conditions of selective ischemia of the renal parenchyma without clamping of renal vessels.

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Borsukov, A. V., V. V. Bekezin, E. U. Kozlova, and V. S. Zuy. "PECULIARITIES OF STRUCTURAL-FUNCTIONAL STATE OF THE KIDNEYS ACCORDING ELASTOGRAPHY SHEARWAVE IN CHILDREN WITH ARTERIAL HYPERTENSION ON THE BACKGROUND OF OBESITY." Journal of Clinical Practice 7, no. 3 (2016): 8–15. http://dx.doi.org/10.17816/clinpract738-15.

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Introduction. Metabolic and hemodynamic consequences of obesity (insulin resistance and hyperglycemia, hypertension, dyslipidemia) rofm metabolic syndrome in adolescence and an accordingly high risk of cardiovascular morbidity and mortality in adulthood. In recent years, studies have shown that obesity and metabolic syndrome are independent risk factors for chronic kidney disease (CKD). Ultrasonography is the most commonly used noninvasive method for research of the kidneys in pediatric patients.Aim of the study: to assess new features of shear wave elastography for the diagnosis of structural

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12

Tjota, Melissa Y., Alexander J. Gallan, Gladell P. Paner, et al. "Diagnosis of non-neoplastic renal diseases in renal mass biopsies." Journal of Onco-Nephrology 3, no. 1 (2019): 49–52. http://dx.doi.org/10.1177/2399369319833699.

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Purpose: As up to 25% of renal neoplasms may be benign, renal function preservation is often a priority in the management of small renal masses. Studies have demonstrated the occurrence of non-neoplastic renal diseases in nephrectomy specimens, but this has not been studied in the setting of renal mass biopsy. Therefore, we conducted this study to determine the feasibility of evaluating the non-neoplastic renal parenchyma in such a limited tissue sample. Methods: We identified 117 needle biopsies for renal lesions in adults from the Department of Pathology archives (2007–2017). Additional stai

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13

Gareeballah, Awadia, Moawia Bushra Gameraddin, Suliman Salih, and Jumaa Tamboul. "Sonographic assessment of kidneys and associated abdominal findings in patients with renal parenchymal diseases." International Journal of Research in Medical Sciences 5, no. 3 (2017): 1048. http://dx.doi.org/10.18203/2320-6012.ijrms20170660.

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Background: The renal parenchymal diseases were common pathological conditions that involved the renal parenchyma. They cause damage to interstitia and glomerula and result in renal failure if left undiagnosed and untreated. The objective of the study was to assess the kidneys in renal parenchymal diseases in Sudanese patients.Methods: This cross-sectional study involved two hundred and six patients confirmed with renal parenchymal diseases. All the patients were scanned using ultrasonography. The echogenicity, kidney size, surface and thickness of renal cortex were assessed and the related ab

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Takeda, M., Y. Katayama, T. Tsutsui, T. Komeyama, and T. Mizusawa. "Dynamic Magnetic Resonance Imaging of Hydronephrosis using Low Magnetic Field Apparatus. Comparison with Radionuclide Study." Urologia Journal 60, no. 4 (1993): 338–44. http://dx.doi.org/10.1177/039156039306000410.

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We evaluated the value of dynamic magnetic resonance imaging (MRI) under low magnetic field in estimating functional recovery from hydronephrosis by comparing dynamic MRI using a low-magnetic field machine with radioisotope (Rl) renal scintigraphy. 1) Both in normal kidney and hydronephrosis, patterns of dynamic MRI were different from those of 99mTc-diethylene triamine pentaacetic acid renography in most cases. 2) The ratio of signal intensity of renal medulla (or inner parenchyma) and that of renal cortex (or outer parenchyma) at the 3rd image tended to be correlated with the grade of hydron

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15

KING, BERNARD F., JUDD E. REED, ERIK J. BERGSTRALH, PATRICK F. SHEEDY, and VICENTE E. TORRES. "Quantification and Longitudinal Trends of Kidney, Renal Cyst, and Renal Parenchyma Volumes in Autosomal Dominant Polycystic Kidney Disease." Journal of the American Society of Nephrology 11, no. 8 (2000): 1505–11. http://dx.doi.org/10.1681/asn.v1181505.

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Abstract.The aims of this study were to assess the accuracy and reproducibility of volumetric determinations of total kidney, renal cyst, and renal parenchymal volumes, using fast electron-beam computerized tomography scanning, and to determine the rate of change of these volumes. Nine patients with autosomal dominant polycystic kidney disease (ADPKD) and serum creatinine ≤ 1.3 mg/dl and/or an initial iothalamate clearance ≥ to 60 ml/min per 1.73 m2were imaged weekly over a 3-wk period (total of 3 times). Approximately 8 yr later, they returned for follow-up studies. The kidney volume estimati

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16

Braconnier, Philippe, Maciej Piskunowicz, Nima Vakilzadeh, et al. "How reliable is renal ultrasound to measure renal length and volume in patients with chronic kidney disease compared with magnetic resonance imaging?" Acta Radiologica 61, no. 1 (2019): 117–27. http://dx.doi.org/10.1177/0284185119847680.

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Background Renal length, volume, and parenchymal thickness are important clinical parameters, yet data concerning the accuracy and reproducibility of ultrasound (US)-based renal length and volume assessment in patients with chronic kidney disease (CKD) are scarce. Purpose To establish whether renal length, volume, and parenchymal thickness can be reliably measured with renal US in patients with CKD. Material and Methods All participants underwent renal US, immediately followed by 3-T magnetic resonance imaging (MRI). Renal length, width, transverse diameter, and parenchyma thickness were measu

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17

Sidharth, S. "A Case Report of Severe Hypokalemic Quadriparesis as the First Manifestation of Type 1 RTA in Primary Sjogren’s Syndrome." Journal of Advanced Research in Medicine 08, no. 02 (2021): 27–29. http://dx.doi.org/10.24321/2349.7181.202111.

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Primary Sjogren’s syndrome is an autoimmune disorder primarily involving the exocrine glands but it can have a varied presentation. It can also present without classically described sicca symptoms. One-third of the patients experience extra-glandular involvement in the form of nonspecific arthralgia, myalgia, arthritis, parenchymal involvement of renal parenchyma, lung, and rarely nerves. Renal involvement in primary Sjogren’s can present with type 1 renal tubular acidosis (RTA) and is associated with a normal anion gap and hypokalemia. We, hereby, report a case of primary Sjogren’s syndrome p

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18

Iannuzzi, Aniello, Mohamed H. Khadra, and John Boulas. "RENAL PARENCHYMA-SPARING SURGERY IN CARCINOMA." ANZ Journal of Surgery 67, no. 12 (1997): 854–56. http://dx.doi.org/10.1111/j.1445-2197.1997.tb07611.x.

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19

Leroy, A., B. Oser, P. Grise, and G. Humbert. "Cefixime penetration in human renal parenchyma." Antimicrobial Agents and Chemotherapy 39, no. 6 (1995): 1240–42. http://dx.doi.org/10.1128/aac.39.6.1240.

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20

Ryumshina, N. I., I. V. Zyubanova, O. V. Musatova, et al. "Predictors of the preservation of renal parenchyma volume after renal denervation in patients with resistant hypertension according to magnetic resonance imaging." "Arterial’naya Gipertenziya" ("Arterial Hypertension") 29, no. 5 (2023): 467–80. http://dx.doi.org/10.18705/1607-419x-2023-29-5-467-480.

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Objective. To define the indicators that allow predicting the preservation of the volume of the renal parenchyma according to magnetic resonance imaging (MRI) data in resistant arterial hypertension (RHT) one year after renal denervation (RDN).Design and methods. The study included 66 patients with RHT (average age 57,6 ± 9,4 years). Anamnesis, renal MRI data, results of the 24-h ambulatory blood pressure (BP) monitoring, lipid profile, serum markers of renal dysfunction initial and 1 year after RDN were analyzed. The group with preserved renal parenchyma volume consisted of 30 patients; the g

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Bebenina, Anastasia A., Olga G. Mokrushina, Marina V. Levitskaya, Vasily Shumikhin, Nadezhda O. Erokhina, and Anzhelika E. Agavelyan. "Long-term treatment results of hydronephrosis in children operated in their first year of life. A systematic review." Russian Journal of Pediatric Surgery, Anesthesia and Intensive Care 13, no. 2 (2023): 189–200. http://dx.doi.org/10.17816/psaic1301.

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BACKGROUND: Congenital stenosis of the ureterоpelvic junction is the most common cause of hydronephrosis in children. AIM: This systematic review aimed to search and analyze modern literature from 1998 to 2021 on the treatment and postoperative follow-up of children with severe hydronephrosis in the first year of life and study the long-term results. MATERIALS AND METHODS: Literary sources were searched in PubMed, Web of Science, Scopus, Google Scholar, and eLibrary databases. The following keywords were used to search for English sources: congenital hydronephrosis, severe hydronep

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22

Ghenu, Maria Iuliana, Francisc Iohann Bach, Maria Mirabela Manea, Dorin Ionescu, and Dorin Dragoş. "Giant Renal Artery Aneurysm With Hydronephrosis and Severe Atrophy of the Renal Parenchyma: Case Report and Literature Review." Clinical Medicine Insights: Case Reports 15 (January 2022): 117954762211271. http://dx.doi.org/10.1177/11795476221127129.

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Background: It is known that renal artery aneurysms may lead to hydronephrosis, but utter shrinking of the renal parenchyma due to a giant renal artery aneurysm has not yet been reported. This report is of an 88-year-old woman with resistant hypertension, hydronephrosis, and renal atrophy due to a giant saccular aneurysm of the left renal artery. Case Report: The patient presented with 2 weeks of worsening low back pain on the left side and resistant hypertension. The discovery of a left flank mass on physical examination, lead to the ultrasound detection of a para-aortic mass and a cyst-like

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Bagnasco, Serena M., and Avi Z. Rosenberg. "Biomarkers of Chronic Renal Tubulointerstitial Injury." Journal of Histochemistry & Cytochemistry 67, no. 9 (2019): 633–41. http://dx.doi.org/10.1369/0022155419861092.

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Progression of renal parenchyma injury is characterized by increasing interstitial fibrosis and tubular atrophy, irrespective of the cause. Histopathologic assessment of renal tissue obtained by biopsy remains the gold standard for determining the presence and extent of tubulointerstitial scarring. Discovery of robust non-invasive means for capturing a snapshot and for longitudinal monitoring of parenchymal deterioration has been the focus of intense multimodal effort by investigators within the renal community and beyond. Research in this field has included the use of in vitro and in vivo exp

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G.Sh.Garayev and A.R.Israfilov. "Reproduction Of Adequate Model Of Chronic Renal Failure." Journal of Life Sciences and Biomedicine 68, no. 2 (2013): 86–89. https://doi.org/10.5281/zenodo.7452435.

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The main purpose of the work was to create an adequate model of chronic renal failure, considering the etiological factor of the disease. For this purpose, 32 chinchilla rabbits weighing 4 to 6 kg were divided into three groups. One of the branches of the renal artery was tied up in 10 rabbits of the 1st group. A highly toxic exudate, received from patients operated on for peritonitis, was introduced to the renal parenchyma of 10 rabbits in the 2-nd group of animals. One of branches of the renal artery was tied up, with the introduction of the highly toxic exudate to the renal parenchyma of th

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Takami, Reiji, Yoshikuni Nagayama, Hiroki Nishiwaki, et al. "Long-Term Observation of Focal Segmental Glomerulosclerosis after Treatment of Renal Parenchymal Malakoplakia: A Case Report." Case Reports in Nephrology and Dialysis 14, no. 1 (2024): 158–63. http://dx.doi.org/10.1159/000540877.

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Introduction: Malakoplakia is a rare and chronic granulomatous disease that is pathologically characterized by the presence of Michaelis-Gutmann bodies and large macrophage clusters. Malakoplakia of the renal parenchyma is especially rare. In this report, we describe the long-term prognosis of a patient who was diagnosed with and treated for renal parenchymal malakoplakia in infancy. Case Presentation: Seventeen years after malakoplakia onset, the patient presented to us with worsening proteinuria. Computed tomography revealed structural abnormalities in the kidney, and focal segmental glomeru

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Hannerz, L., I. Wikstad, G. Celsi, and A. Aperia. "Influence of Vesicoureteral Reflux and Urinary Tract Infection on Renal Growth in Children with Upper Urinary Tract Duplication." Acta Radiologica 30, no. 4 (1989): 391–94. http://dx.doi.org/10.1177/028418518903000412.

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The growth of the renal parenchyma was examined in children with duplicated outflow systems, vesicoureteral reflux (VUR), urinary tract infection (UTI) and no sign of obstruction. Ten patients with reflux occurring only in the caudal system (group A) and 4 patients with reflux both to the caudal and the apical system (group B) were studied shortly after their first UTI (study 1) and then 1.5 to 9 years later (study 2). The frequency of UTI was relatively high during the follow-up period. At urography, renal length and renal area were normal in group A in studies 1 and 2. Parenchymal thickness

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Kumari, Manisha. "Multidetector CT Angiography for Pre-Operative Evaluation of Living Renal Donors - An Observational Study at IGIMS, Patna." Journal of Evolution of Medical and Dental Sciences 10, no. 25 (2021): 1852–56. http://dx.doi.org/10.14260/jemds/2021/383.

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BACKGROUND We wanted to assess the renal abnormalities including parenchymal, arterial, venous and collecting systems that preclude renal donation or altered surgical approach on the basis of CT angiography. METHODS This is a hospital based retrospective observational study. 55 donors (110 kidneys) had undergone preoperative CT renal angiography. The data were collected from last 3 years (December 2016 - December 2019) and analyzed. Two different radiologists interpreted the results unaware of the findings of each other. Final report depended upon the common consensus of both the radiologists.

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TAŞTEMUR, Sedat, Samet ŞENEL, Esin ÖLÇÜCÜOĞLU, Yusuf KASAP, and Emre UZUN. "Effects of renal parenchymal volume and total renal volume on success in retrograde intrarenal surgery." Endouroloji Bulteni 14, no. 1 (2022): 7–16. http://dx.doi.org/10.54233/endouroloji.1011076.

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Objective: Renal parenchymal volume known as an indicator of the number of nephrons in the kidney. We predict that the increase in renal parenchyma volume will increase diuresis and facilitate the excretion of fragments after RIRS procedure. Therefore, increased renal parenchymal volume might be suggested as a factor affecting the success of RIRS procedure.Material and Methods: Out of 238 patients who underwent RIRS in our clinic, 104 patients who underwent primary RIRS due to single kidney stone and who underwent contrast-enhanced computed tomoghraphy were included in the study. The demograph

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Zhu, Jie, Timur Kuru, Yingqi Wei, et al. "Risk factors of long-term postoperative renal function after partial nephrectomy in a solitary kidney." Open Life Sciences 12, no. 1 (2017): 481–88. http://dx.doi.org/10.1515/biol-2017-0057.

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AbstractThe effect of warm ischemia time (WIT) on longterm renal function after partial nephrectomy remains controversial. In this retrospectively cohort study, 75 solitary kidney patients were included and the effects of warm ischemia time, preoperative renal function and resected normal parenchyma volume on long-term renal function were evaluated. Multivariable analysis showed that the preoperative renal function baseline was significantly associated with renal function 12 months postoperation (P=0.01), adjusting for age and comorbidities factors. Meanwhile, perioperative acute renal failure

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Zappasodi, F., G. Sanna, G. Fiorentini, and C. Frassineti. "Small hyperechoic nodules of the renal parenchyma." Journal of Clinical Ultrasound 13, no. 5 (1985): 321–24. http://dx.doi.org/10.1002/jcu.1870130504.

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Pollack, Howard M., Marc P. Banner, and Marco A. Amendola. "Other malignant neoplasms of the renal parenchyma." Seminars in Roentgenology 22, no. 4 (1987): 260–74. http://dx.doi.org/10.1016/0037-198x(87)90052-6.

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Arimilli, Bhargav, Tyler A. On, Vaishnavi S. Srirama, et al. "Understanding the Metabolic Effects of Surgically Induced Renal Ischemia in Humans: A Temporal Approach." Metabolites 15, no. 7 (2025): 462. https://doi.org/10.3390/metabo15070462.

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Background/Objectives: Thousands of nephrectomies are performed annually in the United States, but the short-term metabolic effects of surgically induced renal ischemia remain unclear. The conventional metabolic markers used to characterize post-surgical renal function, such as creatinine and GFR, are measured in the serum but do not provide metabolic information about the renal parenchyma itself. We aimed to characterize the immediate metabolic effects of surgical ischemia on renal parenchyma within a temporal framework. Methods: Timed renal parenchyma biopsies were collected from eight patie

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Bondavalli, C., C. Pegoraro, L. Schiavon, B. Dall'Oglio, M. Luciano, and A. Parma. "Ectopic “blind ureterocele”: Report of 2 cases." Urologia Journal 62, no. 1_suppl (1995): 180–82. http://dx.doi.org/10.1177/039156039506201s49.

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— Ureterocele without corresponding renal tissue has been called blind ureterocele. We observed this rare malformation in two cases: a 17-year-old youth with the ureteral orifice located at the seminal vesicle and a 25-year-old woman with the orifice at the bladder neck. In both cases the proximal ureter ended in the lumbar fossa without renal parenchyma. The etiology of this ureterocele is unclear. Functioning renal tissue is supposed to be necessary for the development of a ureterocele: in blind ureterocele the renal parenchyma could subsequently disappear.

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Afrin, Rawnak, ABM Golam Mostofa, Shankar Kumar Biswas, Sadia Hossain, and Sanowar Hossain. "Different Imaging Modalities for Evaluating Emphysematous Pyelonephritis (EPN); a Life Threatening Urological Emergency – A case report." Bangladesh Journal of Nuclear Medicine 20, no. 1 (2018): 63. http://dx.doi.org/10.3329/bjnm.v20i1.36864.

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<p>Emphysematous pyelonephritis (EPN) is a severe necrotizing infection of the renal parenchyma; it causes gas formation within the collecting system, renal parenchyma, and/or perirenal tissues. In this reported case, a female patient of 40 years was admitted in a tertiary hospital with history of severe left flank pain, lower abdominal pain, fever, vomiting and scanty micturition for three days. Ultrasonogram showed-normal right kidney but left renal bed reveals extensive air obscuring visualization of left kidney with probe tenderness in left flank. Contrast CT scan of KUB shows larger

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George, R. S., X. Huang, and A. Lightle. "A diagnostically challenging case of Lymphoplasmacytic lymphoma involving the kidney clinically mimicking benign hypertension associated chronic kidney disease." American Journal of Clinical Pathology 160, Supplement_1 (2023): S106. http://dx.doi.org/10.1093/ajcp/aqad150.233.

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Abstract Introduction/Objective Lymphomas involving the kidneys are under-recognized and often do not present clinically with signs and symptoms raising suspicion for a hematological malignancy. Worsening renal function may necessitate renal biopsy, but often the clinical picture may not warrant a biopsy. We herein present a case of lymphoplasmacytic lymphoma involving the kidney clinically mimicking benign renal vascular disease associated chronic kidney disease. Methods/Case Report Elderly male with past medical history of stage 3 chronic kidney disease presumed to be due to benign hypertens

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Safedov, F. Kh, A. A. Azizov, Sh A. Badalov, F. M. Gulomov, and I. K. Atoev. "Clinical and morphological of diagnostics and surgical tactics in the treatment of patients with secondary nephrolithiasis by renal parenchymal dysplasia on the background of renal failure caused in children." Health care of Tajikistan, no. 4 (February 25, 2024): 88–95. http://dx.doi.org/10.52888/0514-2515-2023-359-4-88-95.

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The purpose of the study. Improving the results of diagnosis and surgical treatment of patients with secondary nephrolithiasis by renal parenchymal dysplasia on the background of renal failure caused in children.Material and research methods. Clinic of Pediatric Surgery, Avicenna TSMU Abualiibn Sino analyzed 34 patients with renal failure of calculous etiology. In all cases, the biopsy was taken from the cortex – medulla of the kidney during nephrotomy, and during pyelotomy from the site of the nephrostomy tube. Studies of biopsy materials were carried out in laboratorits at the departments of

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Mishra, Aakriti, Daniel Harwood, Joss Wertz, and Christopher Gutjahr. "Renal artery embolization post subtotal nephrectomy for xanthogranulomatous pyelonephritis: A case report." American Journal of Interventional Radiology 5 (February 16, 2021): 3. http://dx.doi.org/10.25259/ajir_28_2020.

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Xanthogranulomatous pyelonephritis (XGPN) is a rare, chronic disease characterized by the destruction of renal parenchyma and replacement with granulomatous tissue and is associated with long-term obstructive uropathy, chronic renal parenchymal infection, and nephrolithiasis. A 57-year-old patient with XGPN was unable to undergo total nephrectomy. Renal artery embolization (RAE) was performed post subtotal nephrectomy as adjunct therapy to prevent urine formation and decrease the risk of post-operative infection. Our case report demonstrates that RAE can be performed safely and effectively wit

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Walter, P. A., G. R. R.Johnston, D. A. Feeney, and T. D. O'Brien. "Applications of ultrasonography in the diagnosis of parenchymal kidney disease in cats: 24 cases (1981-1986)." Journal of the American Veterinary Medical Association 192, no. 1 (1988): 92–98. https://doi.org/10.2460/javma.1988.192.01.92.

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Summary Renal sonograms from 24 cats with confirmed parenchymal kidney disease and from 1 cat with radiographic and palpable evidence of renal enlargement (but without identifiable histologic abnormalities) were evaluated to describe the ultrasonographic appearance of feline renal diseases and to determine the role of ultrasonographic examination in the clinical evaluation of these cases. In all cats with radiographic evidence of abnormal renal size or contour and when poor intraabdominal radiographic contrast precluded visualization of the kidneys, ultrasonography provided complementary infor

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Nyman, U., J. Oldbring, and P. Aspelin. "CT of Carcinoma of the Renal Pelvis." Acta Radiologica 33, no. 1 (1992): 31–38. http://dx.doi.org/10.1177/028418519203300107.

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CT in 28 histologically proven carcinomas of the renal pelvis (pTa-2, n = 12; pT3–4, n = 16) in 26 patients was evaluated retrospectively. Twenty-four of 28 tumors could be identified at CT, 17/28 at urography, and 12/14 at retrograde pyelography. Nineteen tumors appeared as a discrete intrapelvic mass with an attenuation close to that of the kidney on noncontrast scans. There was slight to moderate enhancement of the tumors following i.v. contrast medium injection but they appeared hypodense relative to the renal parenchyma. Five tumors caused only a diffuse obliteration of the renal sinus. C

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Gurung, Bibek, Sumeet Karna, Ashok Raj Pant, and Sushil Dhakal. "Renal replacement lipomatosis as a rare presentation of long-standing nephrolithiasis." Journal of Clinical Imaging Science 15 (May 13, 2025): 17. https://doi.org/10.25259/jcis_52_2025.

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Renal replacement lipomatosis (RRL), as described by the word, is characterized by abnormal proliferation of the fatty tissue and replacement of renal parenchyma by fat with atrophy of renal parenchyma. This rare condition is mainly attributed to a long-standing disease such as lithiasis. The patient usually presents with non-specific abdominal pain of chronic duration, and imaging is necessary to confirm the diagnosis. Here, we present the case of total RRL presented at our center, diagnosed with ultrasonography, and computerized tomography of kidneys, along with contributing factors and its

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CIANCIO, G., V. A. POLITANO, S. FERRELL, and N. L. BLOCK. "Renal parenchyma-sparing surgery as conservative treatment of renal cell carcinoma*." British Journal of Urology 74, no. 4 (1994): 422–30. http://dx.doi.org/10.1111/j.1464-410x.1994.tb00416.x.

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Mammen, Tony, Samuel P. Sterrett, and K. C. Balaji. "657: Normal Appearing Renal Parenchyma Surrounding Renal Tumors Demonstrates Abnormal Cytogenetics." Journal of Urology 173, no. 4S (2005): 179. http://dx.doi.org/10.1016/s0022-5347(18)34897-3.

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Hazarika, Suman, Rochita Venkataramanan, Tonmoy Das, et al. "Acute Renal Infection in Adult, Part 2: Emphysematous Urinary Tract Infection—What the Radiologist Needs to Know." Journal of Gastrointestinal and Abdominal Radiology 03, no. 02 (2020): 137–43. http://dx.doi.org/10.1055/s-0039-3400338.

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AbstractRenal emphysema, as described by Kelly and MacCallum in 1898, refers to the spontaneous generation of gas within the renal parenchyma and surrounding tissues. Since its initial description, it has become apparent that the spectrum of radiologically visible renal and perirenal gas includes three distinct clinical entities: (1) emphysematous pyelonephritis, a necrotizing infection associated with gas formation in the renal parenchyma, (2) emphysematous pyelitis, in which gas is confined to the renal pelvis and calyces, and (3) gas-forming perinephric abscess. In this article, we will rev

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Elshweehy, Samar A., Hosnia A. Mohammed, and Sally M. Osama. "Role of duplex doppler ultrasound in evaluation of patients with diabetic nephropathy." Scientific Journal of Al-Azhar Medical Faculty, Girls 4, no. 3 (2020): 456–62. http://dx.doi.org/10.4103/sjamf.sjamf_69_20.

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Background Color Doppler evaluation of the renal parenchyma may suggest functional or structural changes within the kidneys and could provide useful diagnostic and prognostic information in diabetic nephropathy. Aim The aim was to assess the usefulness of duplex sonography with Doppler waveform analysis in the evaluation and assessment of renal vascular resistance in diabetic patients. Patients and methods This case–control prospective study included a total of 30 patients: 20 diabetic patients and 10 healthy controls. Renal parameters such as renal length, renal parenchymal thickness, parench

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Smith, Zachary L., and Bruce Malkowicz. "Tumor Enucleation for Renal Cell Carcinoma." Journal of Kidney Cancer and VHL 2, no. 2 (2015): 64–69. http://dx.doi.org/10.15586/jkcvhl.2015.27.

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The increased number of small renal masses (SRMs) detected annually has led to a rise in the use of nephron-sparing surgery (NSS). These techniques aim to preserve the largest amount of healthy renal tissue possible while maintaining the same oncologic outcomes as radical nephrectomy (RN). Additionally, partial nephrectomy (PN) has been linked to a lower risk of chronic kidney disease, cardiovascular morbidity, and mortality when compared to RN. There has been continual progress toward resecting less renal parenchyma. While the predominant surgical method of performing NSS is through tradition

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Khanna, P., B. Marder, B. Lamoreaux, and A. Kumar. "THU0430 RENAL URATE DEPOSITION: SUMMARY OF PUBLISHED EVIDENCE." Annals of the Rheumatic Diseases 79, Suppl 1 (2020): 453.1–453. http://dx.doi.org/10.1136/annrheumdis-2020-eular.1761.

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Background:Gout is the most common inflammatory arthropathy in U.S. adults. Although the severity of this debilitating disease is often defined by the presence of tophi in the joints, systemic deposition of urate in major organ systems including the renal parenchyma is not as well established. Urate is primarily cleared through the kidneys and patients with gout often have concomitant renal disease along with other comorbidities such diabetes, coronary artery disease, and hypertension; however, a causal role between these entities has not yet been carefully established. We hypothesize that ura

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Mamaev, I. E., G. Sh Saipulaev, K. V. Stepanenko, and S. V. Kotov. "Renal infarction. Analysis of 12 cases of acute renal artery occlusion." Experimental and Сlinical Urology 15, no. 2 (2022): 38–44. http://dx.doi.org/10.29188/2222-8543-2022-15-2-38-44.

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Introduction. Kidney infarction (KI) is a rare condition that most often develops as a result of renal artery thromboembolism and causes complete or partial loss of renal function. The diagnosis of this pathology is challangable. Objective. To analyze the features of diagnosis, clinical, laboratory and instrumental characteristics of renal infarction. To assess delayed changes in the renal parenchyma in patients with renal infarction. Materials and methods. Retrospective analysis of data from 12 patients with KI who were admitted to V.M. Buyanov Moscow City Clinical Hospital from 2018 to 2021

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Sapin, Carolina Da Fonseca, Luísa Cerqueira Silva-Mariano, Andressa Dutra Piovesan, et al. "Anatomopathologic Study of Kidneys parasitized by Dioctophyme renale in Dogs." Acta Scientiae Veterinariae 45, no. 1 (2017): 7. http://dx.doi.org/10.22456/1679-9216.79788.

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Background: Dioctophymiasis is a disease caused by the nematode Dioctophyme renale and is a relatively common condition in dogs. The parasite affects the kidney, especially the right, enters the kidney capsule and causes destruction and atrophy of the parenchyma. The lesion severity depends on the amount of parasites affecting the kidney, the duration of the infection, number of kidneys involved and concurrent occurrence of kidney disease. The disease’s clinical presentation may be asymptomatic or with nonspecific clinical signs. The diagnosis is based on ultrasound examination and the detecti

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Madzhugin, M. L., A. S. Bolotskov, M. S. Firsov, and A. R. Dadayan. "Elastography of renal parenchyma in healthy patients (literature review)." Medical Visualization 29, no. 1 (2025): 80–91. https://doi.org/10.24835/1607-0763-1501.

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Aim: analysis of literature sources and comparative evaluation of research results on the effectiveness of performing renal elastography in almost healthy patients, development of stiffness standards for kidneys in practically healthy patients and development of a standard technology for performing the study.Material and methods. A search was conducted for scientific articles, publications, clinical recommendations, reports of congresses in the information and analytical systems eLibrary, Google Scholar and PubMed for 2013–2024 by keywords: kidney elastography, assessment of kidney stiffness,

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Kannan, N., R. Bhardwaj, S. Batra, and P. Kulshreshtha. "Primary squamous cell carcinoma of the renal parenchyma." Indian Journal of Pathology and Microbiology 55, no. 3 (2012): 370. http://dx.doi.org/10.4103/0377-4929.101747.

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