Barium enema demonstrated intestinal mucosa derangement, punctum ulcer and colon contracture in 80% of the patients. Congestion edema, erosion, ulcer deformation and narrow were found by colonoscope. 钡灌肠检查80%显示有肠粘膜紊乱、点片状溃疡或肠管挛缩等,结肠镜检查依结肠缺血程度不同而有粘膜充血水肿、糜烂、溃疡、肠腔变形及狭窄等。