9年後対側に再発した異時性両側精巣悪性リンパ腫の1例

概要

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A 69-year-old man visited our hospital in February 1996 with a chief complain of left scrotal swelling. The left scrotal content was hard by palpation and ultrasonography showed a hypo-echoic lesion. Left high orchiectomy was performed with suspicion of a testicular tumor. Pathological examination demonstrated a diffuse large B-cell lymphoma (DLBCL) originating from the left testis,and then he underwent 5 courses of chemotherapy consisting of THP-COP (THP-adriamycin,cyclophosphamide,vincristin,predonisone). Following the treatment for five years,he had no evidence of recurrence. Nine years later,in October 2005,he noticed right scrotal swelling. He underwent right high orchiectmy with suspicion of a contralateral testicular malignant lymphoma. Pathological examination revealed DLBCL. He underwent chemotherapy (rituximab-THP-COP) and achieved complete remission again. He is doing well without recurrence of disease for three years after the last treatment.