Baxter G M, Darien B J, Wallace C E
Department of Large Animal Medicine and Surgery, University of Georgia, College of Veterinary Medicine, Athens 30602.
J Am Vet Med Assoc. 1987 Sep 1;191(5):555-8.
A persistent urachal remnant causing small intestinal strangulation was found on exploratory laparotomy in a 2-year-old cow with colic. The persistent urachus consisted of a thin cord-like band that was attached ventrally to the umbilical region and caudally to the apex of the bladder. The band had formed an internal loop and had strangulated 6 to 8 cm of the distal portion of the ileum. The persistent urachus was detached manually at the umbilicus, ligated at the apex of the bladder, and removed; intestinal resection was not necessary. The urachal remnant was probably a congenital abnormality that may have become stretched during pregnancy, forming an internal hernial loop.
在一头患有绞痛的2岁奶牛进行剖腹探查时，发现一个持续性脐尿管残端导致小肠绞窄。持续性脐尿管由一条细索状带组成，该带腹侧附着于脐区，尾侧附着于膀胱顶端。该带形成了一个内袢，绞窄了回肠远端6至8厘米。在脐部手动分离持续性脐尿管，在膀胱顶端结扎并切除；无需进行肠切除。脐尿管残端可能是一种先天性异常，在妊娠期间可能被拉长，形成一个内疝环。
