精索捻転にて発見された停留精巣腫瘍の1例

Abstract

37歳男.生来, 左鼠径部停留精巣を自覚していたが, 腫大を自覚し, 突如疼痛を自覚し手術目的で入院となった.画像所見, 理学的所見では精巣腫瘍は考えられなかったが, 6ヵ月前より無痛性に増大を認めていたことから左鼠径部停留精巣腫瘍の精索捻転症と診断し, 左高位精巣摘除術を施行した.精巣は外観上は腫瘍とは診断できなかった.精索は鞘膜内で360度外転していた.病理では精上皮腫であった.術後は化学療法, 放射線療法は行わず, 経過観察中であるが, 3ヵ月後の現在, 再発は無い

A 37-year-old man was admitted with a painful mass in his left inguinal region. He had an undescended testis on the left side. Six months earlier, he had noted that his left inguinal testis was larger, and he had suddenly developed pain in the left inguinal region. The levels of AFP, hCG beta and LDH were normal. We diagnosed a left undescended testicular tumor and torsion of the left testis. Left inguinal high orchiectomy showed a torsion of the left testis and histopathological examination of the specimen revealed seminoma.