[Rare forms of acute intestinal obstruction].

The article analyzes 31 cases of rare forms of acute intestinal obstruction (nodulation and invagination of the intestine, obturation of the small intestine by bile stones and bezoars). Their incidence as compared with all the cases of intestinal obstruction of non-tumor etiology was from 1.0 to 3.3%. These diseases are difficult for diagnosis prior to operation and have different clinical manifestations. The surgeon's tactics should be differentiated and dependent on intraoperative findings. The syndrome diagnosis (intestinal obstruction, peritonitis) and early operation in such diseases are thought to be the correct tactics.