6年後に局所再発をきたした精索脂肪肉腫の1例

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78歳で,6年前,精索の多形型脂肪肉腫に対して右高位精巣摘出術を受けた.この時リンパ節転移や遠隔転移はなく,又,高齢であることにより術後補助療法は行われず経過観察されていた.再発腫瘍の摘出術後28ヵ月経過した時点で再発,転移は認めていないA 78-year-old man had undergone high inguinal orchiectomy because of a tumor of the right spermatic cord. Pathological diagnosis was pleomorphic liposarcoma according to the WHO classification. Adjuvant therapy was not performed because of advanced age. Six years later, he consulted our hospital with the chief complaint of asymptomatic swelling of the right scrotal region. Local recurrence was suspected, and tumorectomy was performed. Pathological diagnosis was pleomorphic liposarcoma with cartilaginous metaplasia. A review of 6 cases of recurrent intrascrotal liposarcoma reported in Japan, including the present case, revealed that 5 cases recurred locally in the same lesion and were growing slowly. Therefore, we considered that intrascrotal liposarcoma should be resected as extensively as possible and observed for a long period.