精巣鞘膜由来の線維性偽腫瘍の1例

Abstract

42歳男.4年前から右陰嚢内の無痛性腫瘤で経過観察していたが, 除々に腫瘤の増大及び数が増えてきたため精査加療目的で入院となった.既往歴としては明らかな精巣上体炎や陰嚢水溜, 外傷などは認めなかったが, 触診や超音波所見から炎症性の肉芽腫等が考えられ右精巣上体摘出術を予定した.術中迅速検査で悪性所見がないことを確認し, 腫瘤及び精巣鞘膜をできるかぎり摘出した.精巣や精巣上体は温存した.病理所見は線維性結合組織よりなる腫瘍で小血管の増生と軽度の慢性炎症性細胞の浸潤を伴っており線維性偽腫瘍と診断した

A case of fibrous pseudotumor originating from the tunica vaginalis testis is reported. A 42-year-old man was referred to our hospital with the complaint of painless nodules along his right epididymis. There was no evidence of specific history. Ultrasonography showed an isoechoic small mass attached to the right testis. Inflammatory granulomas of the right epididymis were suspected, and an operation was carried out. The operative appearance indicated tumors of various sizes originating from the tunica vaginalis testis. Tumors were resected with the tunica vaginalis testis. Pathological diagnosis of the tumor was a fibrous pseudotumor. We reviewed and discussed 33 cases of intrascrotal fibrous pseudotumor, including our case, in the Japanese literature.