異時性両側精巣腫瘍の2例

Abstract

初診時39歳と34歳, いずれも腫瘍は初発時・続発時ともseminoma, stage Iであり, 続発時の胸部レントゲン・腹部CT上, 転移やリンパ節腫大は認めなかった.対側発生迄の期間は各々8年10ヵ月, 5年3ヵ月で, 治療は2例とも高位精巣摘除術を行った

We report two cases of metachronous bilateral testicular tumors. In the first case (48 years old), and the second case (39 years old) the contralateral tumor developed 106 months and 63 months after the initial therapy, respectively. In both cases, the primary and the contralateral tumors were stage I seminomas. The patients underwent high inguinal orchiectomy and adjuvant retroperitoneal irradiation for the primary tumor, and only high inguinal orchiectomy for the contralateral tumor. There was no recurrence following the second operation in either case. In the second case, preoperative cryopreservation of the semen was performed for future artificial insemination. Long-term follow-up of contralateral testis is necessary for patients with testicular cancer, even if good prognosis is expected. The quality of life of the patients with bilateral testicular tumors should be maintained by preserving fertility and replacing androgen.