後腹膜リンパ節転移を来した原発性精巣カルチノイド

Primary carcinoid tumor of the testis metastatic to the retroperitoneal lymph node : A case report

　16歳男性．左精巣腫大を主訴に前医受診．腫瘍マーカーAFP，HCG-β，LDHは正常．CTで傍大動脈リンパ節の腫大を認めた．精巣腫瘍の診断となり，左高位精巣摘除術を施行．病理標本は奇形腫を伴うカルチノイドであった．追加治療目的に当科紹介．精巣カルチノイドのリンパ節転移と診断し，後腹膜リンパ節郭清を施行．病理組織はカルチノイドであった．精巣由来のカルチノイドは限られており，文献的考察を加えて報告する．

Abstract

A 16-year-old boy was referred to own Hospital for further treatment of a primary carcinoid tumor of the testis. He previously underwent radical inguinal orchiectomy, and the pathologic diagnosis was a carcinoid tumor with a teratoma. Tumor marker levels were normal and 5-HIAA in urine was elevated. PET-CT revealed para-aortic lymphadenopathy with increased uptake of FDG. The patient underwent a retroperitoneal lymph node dissection. Pathology indicated a carcinoid tumor. As of 6 months postoperatively, on an outpatient basis, recurrence has not been noted (Rinsho Hinyokika 71 : 265-269, 2017).