[Internal intussusception of the rectum. An analysis of 62 cases].

In 62 cases of internal intussusception of the rectum, 21 were treated surgically. Their clinical features included serious dyschesia demanding longer time and strength, tenesmus, and slender stool. Digital examination of the rectum, proctoscopy, and colonoscopy usually showed no abnormalities, while defecography could show the presence and severity of internal intussusception. Parenchymal diseases of the rectum such as carcinomas should be ruled out before surgical correction. Operative measures included rectal suspension raising of the pelvic floor, resection of the redundant sigmoid colon, and the pathogenesis of the disease.