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Artykuły w czasopismach na temat „Malignant germ cell tumor”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Kaur, S., V. K. Bodal, M. S. Bal, R. Bhagat, and N. Gupta. "Malignant Mixed Germ Cell Ovarian Tumor in Pregnant Female." International Journal of Medical and Dental Sciences 2, no. 2 (2013): 233. http://dx.doi.org/10.19056/ijmdsjssmes/2013/v2i2/86794.

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Ovarian germ cell tumours comprise approximately 15% to 20% of all ovarian neoplasms. In pregnant females, its incidence is very low. They arise from primordial germ cells derived from the embryonal gonad. Malignant germ cell tumours comprise less than 5% of all ovarian neoplasms. Most malignant ovarian neoplasms in pregnant women are at early stages and are associated with good prognosis both for the mother and for the neonate. Histologic subtypes and prognosis do not differ from tumors not associated with pregnancy. Careful initial surgery with adequate staging biopsies followed by combinati

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Junu, Devi, Choudhury Manjula, Brahma Valina, Kaur Daljeet, Musfique Jabin, and Islam Laskar Azharul. "Histopathological Pattern of Primary Ovarian Germ Cell Tumour in a Tertiary Care Centre from North East India: A Retrospective Study." International Journal of Current Pharmaceutical Review and Research 16, no. 4 (2024): 96–103. https://doi.org/10.5281/zenodo.12788136.

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Introduction: Primary ovarian germ cell tumors are rare and a heterogenous group of neoplasms with varioushistological pattern. It account for for 20% of all ovarian neoplasms and most commonly seen in young femaleand children and clinically presents with pain abdomen, abdominal lump. Benign ovarian germ cell tumors aremore common than malignant tumors which accounts for about 2.5% of all ovarian malignancies.Aim of this study is to determine the clinical presentation of germ cell tumors of ovary in relation to age, parity,symptoms and evaluate the different histomorphological patterns and fre

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Jha, R., and S. Jha. "Study of malignant germ cell tumors with special reference to malignant ovarian germ cell tumors: 5 years experience." Journal of Pathology of Nepal 2, no. 4 (2012): 289–92. http://dx.doi.org/10.3126/jpn.v2i4.6880.

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Background: Germ cell tumors are rare and complex group of heterogenous neoplasms that comprise both benign and malignant histology. The testes and ovaries are the most common sites. This descriptive study focused on distribution of malignant germ cell tumors with more detail study of ovarian malignant germ cell tumors.Materials and Methods: All cases of malignant germ cell tumor reported from department of pathology of Tribhuvan University Teaching Hospital over five years from April 2007 to April 2012 were included in the study.Results: Thirty five cases (24 female and 11 male) were diagnose

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Hulsker, Caroline C. C., Mariëtte E. G. Kranendonk, Thomas F. Eleveld, et al. "Recurrence of a Mediastinal Germ-Cell Tumor as a Somatic-Type Malignancy: A Complex Case Report." International Journal of Molecular Sciences 22, no. 17 (2021): 9310. http://dx.doi.org/10.3390/ijms22179310.

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Background and case: An adolescent male presented with a second mediastinal tumor 1.5 years after treatment of a proven malignant germ-cell tumor in that location. The differential diagnosis included a recurrent germ-cell tumor or a non-germ cell malignancy. Serum tumor markers alpha-fetoprotein (AFP) and human chorionic gonadotrophin (HCG) were negative. The first biopsy was not informative, and the second biopsy gave a broad differential diagnosis including secondary non-germ cell malignancy using histology and immunohistochemistry. DNA methylation profiling, RNA sequencing, and targeted mic

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Verma, Nisha, and Saurabh Mahajan. "Malignant Teratoma Arising From Mediastinal Non-Seminomatous Germ Cell Tumor: A Rare Case Report." Annals of Pathology and Laboratory Medicine 10, no. 3 (2023): C29–33. http://dx.doi.org/10.21276/apalm.3181.

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Introduction: Primary mediastinal non-seminomatous germ cell tumors (NSGCT) have a worse prognosis than gonadal germ cell tumors (GCTs). Malignant transformation of teratomatous components of GCT to a somatic malignancy is rare. Materials and methods: A case of primary mediastinal NSGCT with malignant transformation of a teratoma was seen in a 23 years old male. Resected tumor specimen was received. Tissue processing was done and sections were prepared for Histo Pathological Examination. Results: Histopathology confirmed NSGCT with yolk sac and teratomatous components. Chemotherapy

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Friedman, Jonathan A., James J. Lynch, Jan C. Buckner, Bernd W. Scheithauer, and Corey Raffel. "Management of Malignant Pineal Germ Cell Tumors with Residual Mature Teratoma." Neurosurgery 48, no. 3 (2001): 518–23. http://dx.doi.org/10.1097/00006123-200103000-00011.

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Abstract OBJECTIVE The treatment of intracranial mixed germ cell tumors presents a unique challenge, since eradication of malignant tumor by radiation and/or chemotherapy may spare the benign tumor component. We reviewed our surgical experience with residual malignant pineal germ cell tumors after neoadjuvant therapy. METHODS Between 1987 and 1997, 16 patients with malignant intracranial germ cell tumors were treated at the Mayo Clinic with a protocol of neoadjuvant chemotherapy and radiation therapy. After the diagnosis was confirmed by histopathological examination, all patients were treated

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7

Vali, Faraz S., Amit Kyal, Parul I. Chaudhary, Sujatha Das, Aprateem Mukherjee, and Partha Mukhopadhyay. "A rare case of mixed germ cell tumor in a teenage girl: a case report." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6, no. 6 (2017): 2663. http://dx.doi.org/10.18203/2320-1770.ijrcog20172378.

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Germ cell tumors represent only 20% to 25% of all benign and malignant ovarian neoplasms. Mixed germ cell tumors are a rare variety of non–dysgerminomatous germ cell tumors. They contain two or more elements; the most frequent combination being a dysgerminoma and an EST (Endodermal Sinus Tumor). We present a case of malignant mixed germ cell tumor comprising of yolk sac tumor, embryonal carcinoma and choriocarcinoma. A 13-year-old girl presented with a huge 25 x 18 cm mass in abdomen with raised values of CA-125, hCG, AFP (alpha-feto protein) and LDH (lactate dehydrogenase). She underwent lapa

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8

Ghosh, A., D. Magar Gharti, B. Sathian, R. Narasimhan, and Op Talwar. "Ovarian Germ Cell Tumor – Histopathological and statistical analysis." Journal of Pathology of Nepal 3, no. 6 (2013): 441–46. http://dx.doi.org/10.3126/jpn.v3i6.8990.

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Background: Ovarian cancers are common among females. The ovarian tumors are classified according to its histogenesis. In the present study, we analyzed the germ cell ovarian tumors reported in our institute. Materials and Methods: This study was a hospital based retrospective study. All ovarian germ cell tumor reported from Jan 2001 to Feb 2013 were retrieved and analyzed. The specimens were routinely processed and the slides were stained with H&E and special stains wherever required. Results: A total of 340 cases of ovarian tumors were reported and 150 cases (44%) were of germ cell origi

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9

Gomes, Tiago Augusto, Elizabeth Aparecida Campos, Adriana Yoshida, Luís Otavio Sarian, Liliana Aparecida Lucci de Angelo Andrade, and Sophie Françoise Derchain. "Preoperative Differentiation of Benign and Malignant Non-epithelial Ovarian Tumors: Clinical Features and Tumor Markers." Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics 42, no. 09 (2020): 555–61. http://dx.doi.org/10.1055/s-0040-1712993.

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Abstract Objective To evaluate the role of clinical features and preoperative measurement of cancer antigen 125 (CA125), human epididymis protein (HE4), and carcinoembryonic antigen (CEA) serum levels in women with benign and malignant non-epithelial ovarian tumors. Methods One hundred and nineteen consecutive women with germ cell, sex cord-stromal, and ovarian leiomyomas were included in this study. The preoperative levels of biomarkers were measured, and then surgery and histopathological analysis were performed. Information about the treatment and disease recurrence were obtained from the m

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Tishchenko, G. V., A. I. Shalyga, and I. A. Tsishchanka. "Extragonadal mediastinal germ cell tumor." Health and Ecology Issues, no. 3 (October 1, 2021): 144–51. http://dx.doi.org/10.51523/2708-6011.2021-18-3-18.

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Extragonadal germ cell tumors (GCTs) are neoplasms that develop from germ cells and have a similar histopathological structure with the gonadal forms of GCTs, but are located outside the gonads. GCTs are the most common malignant neoplasms in men aged 15–35. From 1 to 5 % of malignant GCTs are of the extragonadal origin.The work describes a clinical case of extragonadal mediastinal germ cell tumor, which was diagnosed at the stage of the histological examination of the surgical material.

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11

Prasetya, Fahmi, Susanthy Djajalaksana, Diah Retnani, Artono sharanto, Indrastuti Normahayu, and Shinta Okta. "Successful Therapy on Patients with Yolksac and Embrional Carcinoma by Surgery and Chemotherapy." Malang Respiratory Journal 2, no. 1 (2020): 62–67. http://dx.doi.org/10.21776/ub.mrj.2020.002.01.5.

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Background: Malignant mixed germ cell tumors account for 13-25% of all non seminoma germ cell tumors, almost all cases were found in males (85%), increased in the third decade, and had an average survival rate of 40-45%. With modern management the average 5-year survival rate can be over 80%. Case Report: We reported a case report in Saiful Anwar Malang Hospital, Indonesia, a young man, 26 years old with an malignant epithelial tumor derived from mediastinal or lung. The CT scan of the chest showed an lobulated solid mass of iso-hipodens on the anterior superior mediastinum, mass encompassing

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12

Maharjan, O., N. Bajracharya, G. Dangal, et al. "Misleading Diagnosis of Dysgerminoma in a Young Asymptomatic Patient." Kathmandu University Medical Journal 18, no. 4 (2020): 425–27. http://dx.doi.org/10.3126/kumj.v18i4.49411.

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Dysgerminomas account for approximately one third of all malignant ovarian germ cell tumors (tumors arising from ovarian germinal elements) and are the most common ovarian malignancy detected during pregnancy. They are the only germ cell malignancy with a significant rate of bilateral ovarian involvement that is 15-20 percent. They have a variable gross appearance, but in general are solid, pink to tan to cream colored lobulated masses. They have the best prognosis of all malignant ovarian germ cell tumor variants. Two thirds are stage I at diagnosis, and prognosis is excellent even for those

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13

Petrovic, Igor, Ivan Romic, Goran Pavlek, Ana Ettinger, Mirna Bajt, and Tonko Colic. "Malignant transformation of germ cell tumor with teratomatous component into advanced retroperitoneal sarcoma - case report and literature review." Acta Chirurgica Croatica 1 (November 3, 2019): 17–20. https://doi.org/10.5281/zenodo.3517765.

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<strong>Background: </strong>A late-relapse germ cell tumor (GCT) might contain malignant non-germ cell tumor cells, known as &bdquo;somatic-type malignancy” (SM). Development of secondary SM is extremely rare and occurs in only 1% of patients with GCT. <strong>Case study: </strong>We present the case of a 42-year-old patient who developed retroperitoneal tumor with duodenal and right colon involvement 6 years after he underwent left orchidectomy for stage IIC mixed GCT (95% seminoma, 5% teratoma). Since the tumor markers for germline tumor were normal, another type of tumor was highly s

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Sviracevic, Branko, Srdjan Sedlar, Dragan Malobabic, and Dragomir Cuk. "Mixed malignant germ cell tumor of ovary." Medical review 64, no. 1-2 (2011): 93–95. http://dx.doi.org/10.2298/mpns1102093s.

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Introduction. Malignant tumours of ovary germ epithelium are very rare and account for about 2-5% of all ovarian tumours of germ origin. In adolescent patients under 20 years of age diagnosed to have ovarian tumour, these tumours originate from germ cells in about 70% of cases. Depending on the stage of the disease, medical treatment and age, the death rate ranges from 25% to 84%. A special group of germ tumours are mixed germ cells tumours built of two or more different types of germ tumours. Case report. This paper gives a diagnostic-therapeutic procedure and the clinical picture with the co

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15

Sutradhar, Arpita, Enam Murshed Khan, Shaikat Gupta, Sudipta Kumar Maitra, and Somdeep Ghosh. "Malignant Germ cell Tumor of Ovary: An Unusual Combination and An Irony of Fate." Annals of Pathology and Laboratory Medicine 8, no. 8 (2021): C120–122. http://dx.doi.org/10.21276/apalm.3080.

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Malignant mixed ovarian germ cell tumors are very rare malignant ovarian germ cell tumors, with a very high degree of malignancy. They are aggressive cancers affecting young adolescent girls. The commonest combination reported in literature is dysgerminoma and endodermal sinus tumors. Fertility sparing surgery followed by combination chemotherapy is the treatment of choice. The objectives of this case report are the advanced age of presentation, unusual histopathological combination, and the irony of infertility treatment. We report a rare case of 40-year-old woman with Malignant mixed germ ce

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Treswari, Galuh Ayu, Bambang Soeprijanto, Indrastuti Normahayu, and Lenny Violetta. "YOLK SAC TUMOR OVARIUM." Jurnal Radiologi Indonesia 4, no. 1 (2020): 43–51. http://dx.doi.org/10.33748/jradidn.v4i1.88.

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Yolk sac tumor called endodermal sinus tumor, is a rare and very malignant germ cell tumor. The second largest ovarian germ cell tumor after dysgerminoma, with an incidence of 1% of ovarian malignancies. Tumors usually appear as fast-growing masses in young women. The radiological imaging of this tumor is seen as a large dense cystic mass with heterogeneous enhancement, a component of dilated intratumoralblood vessels accompanied by an intralesional hemorrhagic focus. The best radiological modality is CT scan or MRI. CT imaging useful for distinguishing yolk sac tumors from other ovarian tumor

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Bista, K. D. B. "Incidence, Histological Types and Age at Presentation of Borderline and Malignant Ovarian Tumors at a Tertiary Institute in Nepal." Nepal Journal of Obstetrics and Gynaecology 9, no. 2 (2014): 11–16. http://dx.doi.org/10.3126/njog.v9i2.11736.

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Aims: The objective of this study was to find the incidence, assess the age and stage of presentation of ovarian malignancy and correlate these features with the histological types. Methods: Retrospective analysis of ovarian tumor cases that underwent primary surgery at our institute between April 2009 - April 2012 was done. Age, histological type, stage of the disease features were analyzed. Statistical analysis was done by Chi square and T test. Results: Out of 451 ovarian tumor cases, 81 cases of borderline and malignant ovarian tumor were seen. Germ cell tumors were the most common type of

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Thakur, Dr Himani. "Malignant Leydig Cell Tumor of Testis: Case Report." Journal of Medical Science and clinical Research 12, no. 05 (2024): 01–04. http://dx.doi.org/10.18535/jmscr/v12i05.01.

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Testicular tumors accounts for % of the tumors in men. 5% of which are the sex cord stromal tumors and the remaining are of germ cell origin. Leydig cell are the common subtype of Sex cord stromal tumors and accounts for 1%-2% of all the testicular tumors. Tumor arises from the leydig cells that normally reside in the interstitium of testicles and secrete testosterone in the presence of leutenizing hormone. They show a bimodal distribution with peaks in the prepubertal age group and between 30-60yrs of age. Leydig cell tumor being a hormonally active tumor often presents with precocious pubert

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Dewi, I. Gusti Ayu Sri Mahendra. "Mature teratoma with somatic-type solid malignancy in the mediastinum: A case report of rare and poor prognosis tumour." Bali Medical Journal 11, no. 2 (2022): 539–42. http://dx.doi.org/10.15562/bmj.v11i2.3461.

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Background: Germ cell tumor with somatic-type solid malignancy is a germ cell tumor accompanied by a non-germ cell, the somatic-type malignant component in the form of sarcomas or carcinomas. These germ cell tumors are rare, accounting for only about 2% of all germ cell tumors in men. About 25-30% of these tumors occur in the mediastinum. These tumors are often located in the anterior mediastinum and occur in adult males with a peak incidence between 20-40 years. Case description: A 19-year-old female patient came with chief complaints of chest pain and shortness of breath about three months a

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Goyal, Binita, T. Sheshagiri Rao, and Himanshu Regmi. "Histopathological Study of Ovarian Tumors at a Tertiary Care Hospital of Central Nepal." Journal of College of Medical Sciences-Nepal 15, no. 1 (2019): 22–29. http://dx.doi.org/10.3126/jcmsn.v15i1.21646.

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Background: Ovarian tumors are histogenetically varied and complex tumors spanning all age groups. They account for 30% of all gynaecologic cancers. Malignant tumors carry a high mortality due to its late detection and ineffective screening programs. Current study aims at finding association between age at presentation and size of tumor with behavior of tumors and also association between category of tumor and age at presentation. Methods: This Hospital record based cross-sectional (historical) study was carried out on 158 cases of ovarian tumors received in Department of Pathology, Coll

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Guha, Anik, Somoshree Panda, Partha Chakraborty, and Pankaj Halder. "Malignant Mixed Germ Cell Tumor of the Ovary." Research and Reviews in Pediatrics 25, no. 1 (2024): 19–21. http://dx.doi.org/10.4103/rrp.rrp_15_23.

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Abstract The malignant mixed germ cell tumor (MGCT) is incredibly uncommon in children; however, it has been reported Since 1950. Early lesions are frequently asymptomatic, but advanced tumors can cause a number of symptoms, such as vague abdominal pain and distention. Acute symptoms could be due to the rupture or twisting of the tumor. The prognosis is often favorable, and chemotherapy is frequently administered after conservative surgery, which involves complete excision of the tumor and preservation of reproductive function. We describe a case of MGCT in an 8-year-old girl and highlight the

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Arakawa, Yoshiki, Hirokazu Takami, Kiyotaka Isobe, et al. "PEDT-6 A RANDOMIZED CONTROLLED CLINICAL STUDY OF RADIOTHERAPY COMBINED WITH CHEMOTHERAPY IN PATIENTS WITH NEWLY DIAGNOSED CENTRAL NERVOUS SYSTEM GERM CELL TUMOR, JCCG CNSGCT2021." Neuro-Oncology Advances 4, Supplement_3 (2022): iii10—iii11. http://dx.doi.org/10.1093/noajnl/vdac167.037.

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Abstract Background Central nervous system (CNS) germ cell tumors account for 15.3% of all CNS tumors in children and adolescents and young adults. Five histologic types and mixed types exist and can be classified into the following clinical risk groups: germinomas, malignant germ cell tumors, and other germ cell tumors. In germinomas, platinum-based chemotherapy and whole ventricle/brain irradiations 23.4 Gy/13 fraction are the standard of care, but late adverse events related to radiation therapy are a problem. In malignant germ cell tumors, chemotherapy with alkylating agents and platinum,

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Patel, P. S., V. M. Sharma, G. N. Raval, et al. "Serum lactate dehydrogenase levels in malignant germ cell tumors of ovary." International Journal of Gynecologic Cancer 6, no. 4 (1996): 328–32. http://dx.doi.org/10.1136/ijgc-00009577-199607000-00015.

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Serum lactate dehydrogenase (LDH) levels were examined in 24 patients with germ cell tumors of the ovary to evaluate the usefulness of the enzyme as a tumor maker. Lactate dehydrogenase levels were found to be significantly elevated (P<0.001) in these patients at the time of diagnosis as compared to the controls. Lactate dehydrogenase levels in patients with benign ovarian tumors and controls were comparable. The positive rate of LDH for malignant germ cell tumors of the ovary was 94.5%. The LDH values significantly declined in the patients who responded to treatment. Metastatic or recurren

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Namasivayam, Jeyalakshmi Devi, Vanitha V, Abiramavalli K, Veeraraghavan Gurusamy, Brihadisvarar S, and Lakshmi Piriya P. "A mysterious malignant mixed germ cell tumor with successful term pregnancy- an enigma." Indian Journal of Pathology and Oncology 11, no. 3 (2024): 299–302. http://dx.doi.org/10.18231/j.ijpo.2024.064.

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Ovarian germ cell tumors (GCT) comprise 15-20% of ovarian neoplasms of which 3-5% are malignant. The incidence of ovarian germ cell tumor in pregnancy is low and malignant GCT account for 18-26%. Among the malignant GCTs, Dysgerminoma is the most common tumor followed by Yolk sac tumor. An interesting case of Malignant mixed germ cell tumor in 23-year old pregnant lady who had a full term normal delivery is reported. The patient remained asymptomatic till term pregnancy. Routine ultrasonography misdiagnosed as swelling as a fibroid in early 8 week of gestation, which progressed to a size 13x10

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Gopika Kannan, C.P. Luck, Sarah Kuruvilla, and B. Sangeetha. "Mature Cystic Teratoma with Squamous Cell Carcinoma-Rare Case Presentation." Journal of Advanced Zoology 44, no. 3 (2023): 1488–92. http://dx.doi.org/10.17762/jaz.v44i3.2150.

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Introduction: Mature cystic teratomas are part of a subclass of ovarian germ-cell tumour believed to arise from the primordial germ cells. Ovarian germ-cell tumours account for around 20–25% of ovarian neoplasms and 5% of ovarian cancers. A secondary malignant transformation of the various tissue components of mature cystic teratoma can occur, typically in postmenopausal women. More than 80% of malignant transformations are squamous-cell carcinomas arising from the ectoderm; the rest are carcinoid tumours or adenocarcinomas. Methods and Methodology, Case Report: A 40-year-old postmenopausal pa

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Javed, Muhammad Sheraz, Muhammad Irfan Munir, and Muhammad Saad Siddique. "PURE YOLK CELL TESTICULAR TUMOR;." Professional Medical Journal 24, no. 04 (2017): 637–38. http://dx.doi.org/10.29309/tpmj/2017.24.04.1534.

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Background: Testicular tumor primarily originate from germ cells and are foundin all age groups. Among germ cell tumors one is pure yolk cell tumor which is tumor of infantand pediatric age group and is extremely rare in adulthood. Case Presentation: Current titledcase report is about a 23 year old male who presented with painless enlargement of righttestis. Examination revealed as hard lump involving right testis and clinically epididymis spared.Hormonal assessment consistent with malignant lesion of testis. Right inguinal approachedorchidectomy done and histopathology revealed it as pure yol

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Sano, Keiji. "Pathogenesis of intracranial germ cell tumors reconsidered." Journal of Neurosurgery 90, no. 2 (1999): 258–64. http://dx.doi.org/10.3171/jns.1999.90.2.0258.

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Object. To determine the pathogenesis of intracranial germ cell tumors (GCTs), the author studied 153 cases of these tumors encountered through 1994, 62.7% of which showed monotypic histological patterns and 37.3% of which were shown to be mixed tumors.Methods. Six patients died soon after admission and underwent autopsy; the other patients underwent surgery followed by radio- and/or chemotherapy. One hundred thirty-four cases were followed through the end of 1997. All patients with a choriocarcinoma died within 1 year. Patients with a yolk sac tumor (endodermal sinus tumor) or an embryonal ca

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Mitranovici, Melinda-Ildiko, Diana Maria Chiorean, Maria Cezara Mureșan, et al. "Diagnosis and Management of Dysgerminomas with a Brief Summary of Primitive Germ Cell Tumors." Diagnostics 12, no. 12 (2022): 3105. http://dx.doi.org/10.3390/diagnostics12123105.

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Dysgerminoma represents a rare malignant tumor composed of germ cells, originally from the embryonic gonads. Regarding its incidence, we do not have precise data due to its rarity. Dysgerminoma occurs at a fertile age. The preferred treatment is the surgical removal of the tumor succeeded by the preservation of fertility. Even if a multidisciplinary team, founded in 2009 by a gynecologist, an oncologist, a pediatric oncologist and a pediatric surgeon, under the guidance of the Malignant Germ Cell International Consortium (MaGIC), studies this type of tumor, issues still remain related to the l

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Syahruddin, Elisna, Mia Elhidsi, Erni Mudhiati, and Jamal Zaini. "Characteristics and One Year Survival of Mediastinal Germ Cell and Its Influencing Factors." Jurnal Respirologi Indonesia 40, no. 2 (2020): 97–102. http://dx.doi.org/10.36497/jri.v40i2.107.

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Backgorunds: Mediastinal germ cell tumors are relatively rare. These tumors can be benign or malignant, which has a poor prognosis malignant. Nowadays, multimodality therapy can improve the survival rate of patients’ mediastinal germ cell tumors. This study aims to determine the characteristics and factors affecting the 1-year survival rate of mediastinal germ cell tumors patients in the Persahabatan Hospital, Jakarta. Methods: The study was conducted using retrospective cohort of mediastinal germ cell tumors patients medical records in Persahabatan Hospital, Jakarta from January 1, 2007

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Szigeti, Deborah L., and Douglas E. Sutton. "Pediatric Germ Cell Tumor: Case Study." Journal of Diagnostic Medical Sonography 34, no. 1 (2017): 72–77. http://dx.doi.org/10.1177/8756479317712187.

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Germ cell (yolk sac) tumors are rare tumors that often have a poor prognosis because they are not usually found until metastases have occurred. The diagnosis of yolk sac tumors is usually a multimodality diagnosis in conjunction with a biopsy of the lesion. This case study outlines the initial stages of diagnosing and treating a 22-month-old male patient who was found to have a widespread malignant yolk sac tumor in his abdominopelvic cavity. Sonography was used as the primary imaging modality due to the patient’s age, but it was soon determined that a follow-up with computed tomography was ne

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Sano, Keiji. "Pathogenesis of intracranial germ cell tumors reconsidered." Neurosurgical Focus 5, no. 1 (1998): E3. http://dx.doi.org/10.3171/foc.1998.5.1.4.

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The author studied 153 cases of intracranial germ cell tumors (GCTs) through 1994, 62.7% of which showed monotypic histological patterns and 37.3% of which were shown to be mixed tumors. All of these cases, except for six patients who died soon after admission and underwent autopsy, underwent surgery followed by radio- and/or chemotherapy. All patients with choriocarcinoma died within 2 years. Patients with yolk sac tumor (endodermal sinus tumor) and embryonal carcinoma also had poor outcomes. Patients with mature teratoma had 5- and 10-year survival rates of 92.9% each. Patients with immature

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Bremmer, Felix, Hanibal Bohnenberger, Stefan Küffer, et al. "Proteomic Comparison of Malignant Human Germ Cell Tumor Cell Lines." Disease Markers 2019 (September 3, 2019): 1–14. http://dx.doi.org/10.1155/2019/8298524.

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Malignant germ cell tumors (GCT) are the most common malignant tumors in young men between 18 and 40 years. The correct identification of histological subtypes, in difficult cases supported by immunohistochemistry, is essential for therapeutic management. Furthermore, biomarkers may help to understand pathophysiological processes in these tumor types. Two GCT cell lines, TCam-2 with seminoma-like characteristics, and NTERA-2, an embryonal carcinoma-like cell line, were compared by a quantitative proteomic approach using high-resolution mass spectrometry (MS) in combination with stable isotope

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Kabir, SM Rashed Zahangir, Md Waheed Akhtar, and Farida Yasmin. "Pediatric Germ Cell Tumors: An Experience of 7 Years in a Tertiary Hospital of Bangladesh." Dhaka Shishu (Children) Hospital Journal 35, no. 2 (2020): 119–22. http://dx.doi.org/10.3329/dshj.v35i2.49692.

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Introduction: Germ cell tumors are a group of tumors with different clinical presentation and histological and biological characteristics. Malignant germ cell tumors occur at all ages with a trend of bimodal distribution in infancy and adolescence. Objective: To evaluate the demographic characteristics, distribution of different types of germ cell tumor, treatment modalities and outcome of germ cell tumor in children in a tertiary care hospital of Bangladesh. Methods: In this retrospective study, data regarding age and sex distribution, location, types of tumors, management of germ

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Nonaka, Masahiro, Junichi Takeda, Tetsuo Hashiba, and Akio Asai. "STMO-08 Validation of the endoscopic 5-ALA fluorescence diagnosis for intraventricular tumors." Neuro-Oncology Advances 2, Supplement_3 (2020): ii10. http://dx.doi.org/10.1093/noajnl/vdaa143.043.

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Abstract Intraoperative 5-ALA fluorescence diagnosis (PDD) has been shown to improve tumor resection rates in surgery for malignant glioma. Recently, the usefulness of PDD has been reported in tumors other than malignant glioma. However, the fluorescence of intraventricular tumors is not easy to observe under the microscope, because excitation light could not reach enough to the deepest part of the brain. Therefore, we performed endoscopic 5-ALA fluorescence diagnosis of intraventricular tumors and evaluated its usefulness. Ten cases of intraventricular tumors were included in the study. There

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Gill, Brian J. A., Dominique M. Higgins, Matei A. Banu, Michael G. Argenziano, Neil A. Feldstein, and Jeffrey N. Bruce. "Right occipital transtentorial approach for a pineal malignant germ cell tumor." Neurosurgical Focus: Video 5, no. 1 (2021): V3. http://dx.doi.org/10.3171/2021.4.focvid2151.

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Germ cell tumors account for up to 53% of the malignant lesions found in the pineal region and are typically managed with a combination of radiation therapy and chemotherapy. Malignant somatic transformation of intracranial germ cell tumors is exceedingly rare and has only been reported on two other occasions. Here the authors present the case of a pineal yolk sac tumor that failed optimum first-line treatment and underwent malignant somatic transformation to an enteric mucinous adenocarcinoma requiring surgical intervention. This video demonstrates the technical nuances of the occipital trans

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Garg, Amit, Ayoub Nahal, Robert Turcotte, Roger Tabah, and Thierry Alcindor. "Primitive Neuroectodermal Tumor (PNET) as Somatic-Type Malignancy Arising from an Extragonadal Germ-Cell Tumor: Clinical, Pathological and Molecular Features of a Case." Tumori Journal 99, no. 1 (2013): e24-e27. http://dx.doi.org/10.1177/030089161309900128.

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We report a rare case of a 34-year-old man with a right axillary mass. Ten years previously, he had been diagnosed with a right scapular nonseminomatous germ-cell tumor consisting of teratoma, completely resected without any further treatment. Presently he was found to have a metastatic malignant small round cell tumor consistent with a secondary somatic malignancy arising in the background of nonseminomatous germ-cell tumor, teratoma, yolk sac tumor, and primitive neuroectodermal tumor with distinct chromosome 22 translocation. Although the patient initially responded well to chemotherapy wit

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SEYİDOVA, Yegana, Sevtap SEYFETTİNOĞLU, Ümran KÜÇÜKGÖZ GÜLEÇ, et al. "The effect of clinicopathological features on prognosis in malignant ovarian germ cell tumors." Cukurova Medical Journal 48, no. 1 (2023): 54–63. http://dx.doi.org/10.17826/cumj.1176706.

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Purpose: Malignant ovarian germ cell tumors cause 5% of ovarian cancers. Studies examining prognosis and survival rates are significant due to malignant ovarian germ cell tumors' rarity. We aimed to investigate outcome and prognostic factors in these patients. Materials and Methods: The study includes clinicopathological records of malignant ovarian germ cell tumor patients in our clinic between April 1992 and November 2017. Demographic and clinical characteristics, pathological observations, adjuvant treatment modalities, and follow-up details were analyzed, and their survival effects w

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Büyükpamukcu, Münevver, Ali Varan, Serhan Küpeli, et al. "Malignant Sacrococcygeal Germ Cell Tumors in Children: A 30-year Experience from a Single Institution." Tumori Journal 99, no. 1 (2013): 51–56. http://dx.doi.org/10.1177/030089161309900109.

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Background Our aim was to analyze treatment results and survival characteristics of our patients with malignant sacrococcygeal germ cell tumors. Procedure Patient files of children with malignant sacrococcygeal germ cell tumors, treated at our institution between 1979 and 2009, were searched. Patient characteristics, histopathological subtypes, extension of disease, alpha-fetoprotein (AFP) level at the time of diagnosis and relapse, extent of surgical resection, chemotherapy protocols, details of radiotherapy and survival characteristics were recorded. Results A total of 58 patients (M/F = 20/

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Sibirskaya, Elena V., Irina V. Karachentsova, Ivan N. Skapenkov, Anastasia A. Naumenko, Ivan I. Petinov, and Polina O. Nikiforova. "Peculiarities of differential diagnosis of malignant and benign ovarian tumors in girls (case report of immature teratoma of the ovary)." Pediatric pharmacology 20, no. 3 (2023): 256–60. http://dx.doi.org/10.15690/pf.v20i3.2585.

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Germ cell tumors are a heterogeneous group of tumors differentiating from primary germ cells of embryonic gonads and their derivatives. This case report demonstrates the diagnostic algorithm and diagnostic tactics of a rarely encountered histological type of ovarian germ cell tumor.

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Jakovljevic, Branislava Golub, Dejan Đokanović, Snježana Miličević, Anđa Škobić, Dejan Ćazić, and Vladimir Krivokuća. "Metastatic germ cell tumor with complete response-7 years follow up." International Journal of Research in Medical Sciences 5, no. 12 (2017): 5443. http://dx.doi.org/10.18203/2320-6012.ijrms20175470.

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Cancer of the testis is a relatively uncommon disease, accounting for approximately 1-1.5% of all cancers in males. 5% of the malignant germ cell tumors are made of extragonadal origin. Germ cell tumors occur in men younger, usually between 20 and 35 years old. We report a case of a patient with metastatic extragonadal germ cell tumor with multiple sites of metastases, and very high initial values of tumor marker human chorionic gonadotrophin (HCG)- 1351308. At the time of diagnosis, the patient was in a very poor general condition. After the applied chemotherapy, there was a complete response

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Prelevic, Rade, Bosko Milev, Novak Milovic, Mihajlo Ignjatovic, Aleksandar Spasic, and Nikola Petrovic. "Gigantic spermatocytic seminoma: A rare tumor of germ cell origin." Vojnosanitetski pregled 73, no. 7 (2016): 679–81. http://dx.doi.org/10.2298/vsp150527081p.

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Indtorduction. Spermatocytic seminoma represents a rare hystologic type of malignant testicular germ cell tumor with slow course and low malignant potential. Case report. We presented a 69-year-old patient with atypical clinical presentation of spermatocytic seminoma initially diagnosed as gigantic hydrocoellae which compromised walking. After long term evolution clincal picture presented with signs and symptoms of acute scrotum. Preoperative echosonography was performed and the diagnosis of testicular infiltrative tumor was established. After that left scrotal orchiectomy was performed. Patoh

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Gülhan, Selim Şakir Erkmen, Leyla Nesrin Acar, Merve Şengül İnan, Şule Yeşil, and Pınar Bıçakcıoğlu. "Primary malignant mediastinal germ cell tumor in childhood." Current Thoracic Surgery 3, no. 2 (2018): 85. http://dx.doi.org/10.26663/cts.2018.00018.

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Pont, Jörg, Nestor Pridun, Michael Vesely, Heinz R. Kienzer, and Elisabeth Pont. "Extragonadal malignant germ cell tumor of the lung." Journal of Thoracic and Cardiovascular Surgery 107, no. 1 (1994): 311–12. http://dx.doi.org/10.1016/s0022-5223(94)70488-0.

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van Echten, Jannie, Lena C. van Doorn, Hans C. van der Linden, Anneke Y. van der Veen, Curt W. Burger, and Bauke de Jong. "Cytogenetics of a malignant ovarian germ-cell tumor." International Journal of Cancer 77, no. 2 (1998): 217–18. http://dx.doi.org/10.1002/(sici)1097-0215(19980717)77:2<217::aid-ijc8>3.0.co;2-t.

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Cools, Martine, Stenvert L. S. Drop, Katja P. Wolffenbuttel, J. Wolter Oosterhuis, and Leendert H. J. Looijenga. "Germ Cell Tumors in the Intersex Gonad: Old Paths, New Directions, Moving Frontiers." Endocrine Reviews 27, no. 5 (2006): 468–84. http://dx.doi.org/10.1210/er.2006-0005.

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The risk for the development of germ cell tumors is an important factor to deal with in the management of patients with disorders of sex development (DSD). However, this risk is often hard to predict. Recently, major progress has been made in identifying gene-products related to germ cell tumor development (testis-specific protein-Y encoded and octamer binding transcription factor 3/4) and in recognizing early changes of germ cells (maturation delay, preneoplastic lesions, and in situ neoplasia). The newly recognized “undifferentiated gonadal tissue” has been identified as a gonadal differenti

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Shalalfa, Neveen, Shatha Wajeeh, Wael Amro, Tasneem Farakhna, Malak Addase, and Javid Mohammadzadeh Azarabadi. "Large neonatal sacrococcygeal teratoma in rural Palestine: A case report." Turkish Journal of Pediatric Surgery 38, no. 3 (2024): 116–20. https://doi.org/10.62114/jtaps.2024.28.

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The majority of solid tumors in newborns are sacrococcygeal teratomas (SCTs). These tumors originate in the sacrococcygeal region and contain tissue from all three germ layers. Nearly one in every 35,000 to 40,000 live births may be affected. Although the tumor is typically benign, the likelihood of malignant progression increases with the increasing age. The development of a mature teratoma can be attributed to either a pathological transformation of primordial germ cells or the development of a single germ cell tumor following the completion of the first phase of meiosis and the failure of m

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Haque, Enamul, Naila Huq, Abdullah Yusuf, Shahana Khanam, and Kazi Monisur Rahman. "A Study of Histomorphology of Ovarian Neoplasms." Journal of Dhaka Medical College 27, no. 1 (2018): 25–28. http://dx.doi.org/10.3329/jdmc.v27i1.38891.

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Background: Ovarian malignancy is one of the most common causes of cancer deaths in females in Bangladesh. Due to poor early symptoms and lack of screening protocol, it is detected later in the clinical course of the disease. It is also one of the most treatable tumors because majorities are sensitive to chemo-radiation. An accurate histology is often a critical factor in achieving optimum treatment response. Objective: To study the frequency and histological patterns of neoplastic ovarian lesions. Methodology: A retrospective cross sectional study was done. We analyzed the data co

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Rosa, Ashley M., Nitika Dabas, Diana M. Byrnes, Mark S. Eller, and James M. Grichnik. "Germ Cell Proteins in Melanoma: Prognosis, Diagnosis, Treatment, and Theories on Expression." Journal of Skin Cancer 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/621968.

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Germ cell protein expression in melanoma has been shown to correlate with malignancy, severity of disease and to serve as an immunologic target for therapy. However, very little is known about the role that germ cell proteins play in cancer development. Unique germ cell pathways include those involved in immortalization, genetic evolution, and energy metabolism. There is an ever increasing recognition that within tumors there is a subpopulation of cells with stem-cell-like characteristics that play a role in driving tumorgenesis. Stem cell and germ cell biology is intertwined. Given the enormo

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Shaikh, Naseer Ahmed, Farzana Memon, and Rukhsana Parveen Samro. "TUMOR MARKERS." Professional Medical Journal 21, no. 04 (2018): 621–27. http://dx.doi.org/10.29309/tpmj/2014.21.04.2290.

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Object: Analysis of serum tumor markers CA-125, CEA, AFP, & ß-HCG in patientswith ovarian malignant tumors and correlation of their serum levels with histological types. StudyDesign: Institution based descriptive and prospective study. Place & Duration: Department ofPathology, Liaquat University of Medical & Health Sciences, Jamshoro from January 2009 toJune 2011. Material & Methods: One hundred cases, diagnosed as ovarian malignant tumor onH&E staining were selected for study & measurement of serum CA-125, CEA, AFP, & ß-HCGpreoperatively and postoperatively in each

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Curreri, Stephanie A., Sarah C. Markt, Rowan Miller, et al. "Bilateral testicular germ cell tumors." Journal of Clinical Oncology 33, no. 7_suppl (2015): 392. http://dx.doi.org/10.1200/jco.2015.33.7_suppl.392.

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392 Background: Germ cell tumors (GCTs), both seminomatous and non-seminomatous, account for greater than 90% of testicular cancers. While bilateral testicular GCTs are rare, the incidence of bilateral tumors has increased over time. Methods: 668 cases of bilateral and 38,593 cases of unilateral testicular GCTs were reported between 1973 and 2011 by the SEER database. Patient characteristics and tumor features were analyzed. Results: The incidence of bilateral GCTs among men with testicular GCTs was 1.7% (668 of 39,261 total cases). Among the 668 men with bilateral GCTs, 53% (n=353) of second

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