下大静脈を切除した進行期セミノーマ

EN BLOC RESECTION OF THE INFERIOR VENA CAVA AND RESIDUAL RETROPERITONEAL MASS AFTER CHEMOTHERAPY FOR ADVANCED ANAPLASTIC SEMINOMA: A CASE REPORT

　35歳，男性。後腹膜リンパ節に径10cmの転移巣を有する退形成精巣セミノーマに対し右高位精巣摘除術およびVAB−6療法3コース施行。後腹膜残存腫瘍とこれにより閉塞した下大静脈を腎静脈分岐部より下大静脈分岐部まで合併切除した。

A 35-year-old man received VAB-6 chemotherapy after right inguinal orchiectomy for bulky retroper-itoneal stage II anaplastic seminoma. Since the response was classified as partial after 3 courses, retroper-itoneal lymph node dissection and resection of the residual mass were attempted. The mass was a densely fibrotic tissue that obliterated the inferior vena cava almost completely. We therefore performed en bloc excision of the mass and inferior vena cava which was resected from just below the renal veins to the bifurcation.