精索悪性線維性組織球腫の1例

Abstract

52歳男.主訴は左鼠径部の腫瘤, 疼痛である.6ヵ月前より左鼠径部の硬結を自覚したが放置, 次第に硬結が増大し, 疼痛を生じた為, 当科に精査目的で入院となった.超音波検査では6.0×4.0×3.0cm径の分葉状した不均一な腫瘍が認められ, 左精巣, 精巣上体とは離れていた.根治的拡大睾丸摘出術を施行した.組織学的には巨細胞が混在した悪性組織球腫であった.術後に局所の放射線照射療法を行い, 術後3ヵ月間転移及び局所再発を認めていない

A 52-year-old man presented with a painful, gradually enlarging mass in the left inguinal region. An ultrasound examination demonstrated a lobulated, heterogenous tumor 6.0 x 4.0 x 3.0 cm in diameter, which separated from the left testis and epididymis. Radical inguinal orchiectomy with wide en bloc local resection was performed. Histologic diagnosis was a malignant fibrous histiocytoma (MFH) with a giant cell variant. The patient underwent postoperative regional irradiation and has been alive without metastasis and local recurrence 3 months after the operation. Among the 19 patients with MFH of spermatic cord reported in Japan, only two cases were of giant cell type of MFH including the present case.