概念及病因由于粪便块在大肠内滞留,压迫肠粘膜,防碍静脉回流,导致淤血、充血、血栓形成、肠粘膜坏死,形成溃疡。肠粘膜缺血是本病病因。有时可引起肠穿孔或大出血,所以应早期诊断治疗。临床表现作者检查确诊了15例。患者年龄在46～92岁之间,65岁以上为高龄者,超高龄者10名。 Concept and cause As stool block in the large intestine, oppression of intestinal mucosa, hinder venous return, resulting in congestion, congestion, thrombosis, intestinal mucosal necrosis, the formation of ulcers. Intestinal mucosal ischemia is the cause of the disease. Sometimes can cause intestinal perforation or bleeding, it should be early diagnosis and treatment. The clinical manifestations of the authors confirmed the diagnosis of 15 cases. Patients aged 46 to 92 years old, 65 years of age for the elderly, super elderly 10.