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Primary carcinoid tumor arising in a retroperitoneal mature teratoma in an adult
Author(s) -
YAMASAKI TOSHINARI,
YAGIHASHI YUUSUKE,
SHIRAHASE TOSHIAKI,
HASHIMURA TAKAYUKI,
WATANABE CHIHIRO
Publication year - 2004
Publication title -
international journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 67
eISSN - 1442-2042
pISSN - 0919-8172
DOI - 10.1111/j.1442-2042.2004.00918.x
Subject(s) - medicine , immature teratoma , teratoma , carcinoid tumors , pathological , radiology , pathology , germ cell tumors , surgery , chemotherapy
An extremely rare case of a primary carcinoid tumor arising in a mature retroperitoneal teratoma is reported. A 53‐year‐old woman was admitted for further examination of an incidental retroperitoneal mass with calcification. Computed tomography scans demonstrated a tumor with fat, soft tissue and bone densities on the left renal hilum. Surgical excision of the tumor was performed with a preoperative diagnosis of retroperitoneal teratoma. The pathological diagnosis was mature teratoma, including all three germ layers. A carcinoid tumor was evident among teratoid tissues and it was thought to be a teratoma with malignant transformation. The patient did not have a carcinoid syndrome and had an uneventful recovery. She has been followed for 31 months with no recurrence. Carcinoid tumors rarely occur in teratomas of the ovary and the testis and, to our knowledge, this is the first case of carcinoid arising in a retroperitoneal mature teratoma.