巨大精巣腫瘍の1例

Giant Testicular Tumor:A Case Report

　症例は42歳，男性。4年前より右陰嚢内に無痛性腫瘤を認めていたが放置していた。初診時，右陰嚢内に15cm大の腫瘤および右鼠径部に5cm大の腫瘤を触知した。LDH738IU／ml,HCG-β4.4ng／mlと高値で，右精巣腫瘍と診断し，右高位精巣摘除術および右鼠径リンパ節郭清術を施行した。摘除した腫瘍は12×7×8cm，重量1,250g，腫大したリンパ節は5×5×2cmであった。病理組織学的検査にてセミノーマ，pT1NOMO, stage Iであり，リンパ節は反応性の変化で腫瘍細胞は認めなかった。

A 42-year-old male visited our clinic complaining of painless swelling of the right scrotal contents which had been growing for the past 4 years. The right scrotal contents has swellen to the size of an infant's head with right inguinal lymph nodes swelling. Serum β-human chorionic gonadotropin (4.4 ng/ml) and lactate dehydrogenase (738 IU/l) were elevated. Right high orchiectomy and right inguinal lymph node dissection were performed. The removed right testicular tumor was 12×7×8cm in size and was 1,250 g in weight. The histopathological findings was seminoma. The findings of lymph nodes was inflammatory change without malignancy.