title: [Testicular tumor arising in intra-abdominal testis which was not detected at prior orchidopexy : a case report].
abstract: A 35-year-old man with an intra-abdominal testicular tumor arising from the right unresolved intraabdominal testis is reported. At 10 years old, left orchidopexy was successfully performed for bilateral undescended testes. However, the right testis was not detected during the operation, and it was diagnosed as vanishing testis. Twenty-five years later, he was referred to our hospital with the complaint of right lower abdominal pain. Computed tomography revealed huge pelvic tumors and bulky para-aortic lymph node swellings. Histopathologic examination of the needle biopsy specimen obtained from the pelvic tumor revealed seminomatous germ cell tumor. Taking the results with a tumor marker study into consideration, the patient was tentatively diagnosed with non-seminomatous germ cell tumor NSGCT (stage IIB) arising from the unresolved intra-abdominal testis or extragonadal germ cell tumor. He received 3 courses of bleomycin, etoposide, cisplatin (BEP), and 4 courses of VP-16, ifosfamide, cisplatin (VIP). After chemotherapy, we performed tumorectomy and retroperitoneal lymphadenectomy because tumor markers were normalized and 2-[18F] fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET)-CT revealed normalization. We identified the pelvic tumor as an intra-abdominal testicular tumor arising from right unresolved intra-abdominal testis. Pathological examination revealed no residual tumor cells. There has been no recurrence 17 months after surgery.
authors: The Departments of Urology, Hirosaki University Graduate School of Medicine.
authors: Hiromichi
authors: H
authors: Iwamura
authors: Shingo
authors: S
authors: Hatakeyama
authors: Ken
authors: K
authors: Fukushi
authors: Tendo
authors: T
authors: Sato
authors: Yuta
authors: Y
authors: Kojima
authors: Hiromi
authors: H
authors: Murasawa
authors: Hirofumi
authors: H
authors: Ishimura
authors: Takahiro
authors: T
authors: Yoneyama
authors: Takuya
authors: T
authors: Koie
authors: Noritaka
authors: N
authors: Kamimura
authors: Satoko
authors: S
authors: Morobashi
authors: Hiroshi
authors: H
authors: Kijima
authors: Chikara
authors: C
authors: Ohyama
mesh_terms: D000328:Adult; D002648:Child; D003456:Cryptorchidism / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D009373:Neoplasms, Germ Cell and Embryonal / Q000209:etiology*; D056126:Orchiopexy; D013736:Testicular Neoplasms / Q000209:etiology*