Primary intrarenal teratoma in an adult: A case report and review of literature

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Abstract

A 35-year-old male presented with left loin pain. On evaluation, he was diagnosed to have a left renal lower polar mass. He underwent partial nephrectomy. The histopathological examination was suggestive of teratoma of the kidney. We present this case, as intrarenal teratomas in adults are extremely rare and only a very few cases are reported in literature.

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Most cited references 11

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Primary carcinoid tumor arising in a mature teratoma of the kidney: a case report and review of the literature.

Hee-Jung Jung, Sonya Park, Hyun-Seok Jin … (2002)

Primary carcinoid tumor, especially that arising in a mature teratoma of the kidney, is extremely rare; only 3 cases have been reported in the world literature to date. Because of the rarity of the lesion, its histogenesis and prognosis are unknown. We report a case of primary renal carcinoid tumor occurring in a mature teratoma in a 30-year-old woman. A computed tomographic scan of the abdomen revealed a mass in the left kidney containing dense calcification with minimal contrast enhancement. Histologically, the tumor was composed of trabecular and anastomosing ribbonlike nests, identical to the features of carcinoid tumors of other sites. Immunohistochemical stainings were positive for cytokeratin, neuron-specific enolase, and chromogranin. In addition, there were mature teratoid tissues, such as columnar epithelium, smooth muscle, and bone. The carcinoid tumor was under and closely apposed to the lining of the cysts. The patient did not have clinical manifestations of the carcinoid syndrome and had an uneventful recovery.

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Carcinoid tumor occurring in cystic teratoma of the kidney: a case report.

H Isobe, M Kojiro, H Ohishi (1976)

Although carcinoid tumors have occurred rarely in benign teratomas of the ovary and the testis, we believe this case is the first reported of carcinoid arising in a benign cystic teratoma of the kidney. The patient was admitted to the Tagawa Hospital with a left abdominal mass and severe epigastric pain. Retrograde and intravenous pyelograms revealed marked dilatation of the left kidney; a renal tumor was diagnosed clinically. At operation, a polycystic tumor weighing 1400g was removed. Histologically, a carcinoid tumor was evident among teratoid tissues, such as columnar epithelium, cartilage, smooth muscle, and mucous secretory glands. The patient did not have a carcinoid syndrome and had an uneventful recovery.

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Intrarenal mature cystic teratoma associated with renal dysplasia: case report and literature review.

Y Nagashima, Iris Otani, M. Miura … (2001)

We report a case of intrarenal teratoma in a 6-year-old boy. Two years before his operation, multicystic masses had been found in the left side of his abdomen. In the operation, three main cystic masses were located in the upper and lower poles of the left kidney, which were removed in pieces. Histologically, the cyst wall was lined mainly with keratinizing squamous epithelium with hair follicles, shafts and sebaceous glands. The adjacent renal parenchyma showed atrophy, with partially dysplastic and angiomyolipoma-like lesions. Based on these findings, the lesion was diagnosed as mature cystic teratoma of dermoid cyst type. Extragonadal teratoma occurs predominantly along the median line of the body. Intrarenal teratoma is extremely rare; however, it should be distinguished from teratoid Wilms' tumor and other renal cystic lesions.

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Author and article information

Journal

Journal ID (nlm-ta): Indian J Urol

Journal ID (publisher-id): IJU

Title: Indian Journal of Urology : IJU : Journal of the Urological Society of India

Publisher: Medknow Publications (India )

ISSN (Print): 0970-1591

ISSN (Electronic): 1998-3824

Publication date (Print): Jul-Sep 2009

Volume: 25

Issue: 3

Pages: 404-406

Affiliations

Department of Urology, Christian Medical College, Vellore, India

[1 ]Department of Pathology, Christian Medical College, Vellore, India

Author notes

For correspondence: Dr. Nirmal T. J, Department of Urology, Christian Medical, College, Vellore, India. E-mail: nirmaltj@ 123456gmail.com

Article

Publisher ID: IJU-25-404

DOI: 10.4103/0970-1591.56184

PMC ID: 2779971

PubMed ID: 19881142

SO-VID: 93d78498-edf6-4cd9-b0f4-3c02f7d97fbe

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Primary intrarenal teratoma in an adult: A case report and review of literature

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Karger: Nephrology

Most cited references 11

Primary carcinoid tumor arising in a mature teratoma of the kidney: a case report and review of the literature.

Carcinoid tumor occurring in cystic teratoma of the kidney: a case report.

Intrarenal mature cystic teratoma associated with renal dysplasia: case report and literature review.

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