重複下大静脈いわゆるperiureteric venous ringの1例

Abstract

Up to now, about ISO cases of retrocaval ureter have been reported in the Japanese literature, though there has been few reports of double vena cava (periureteric venous ring). Herein we report a case of double vena cava (periureteric venous ring), review the literature and discuss the nomenclature of this entity. The course of the case was as follows. A 40-year-old man was seen with left CVA pain. Bilateral ureteral stones were revealed, and biateral ureterolithotomies were done. Although a venous anomaly was recognized at the time of right ureterolithotomy, precise condition was unclear. There was neither the stricture nor the hydro-ectasis on his right ureter after the ureterolithotomy, so we decided to follow-up conservatively. A double vena cava (periureteric venous ring) was revealed by the venacavography after the operation.