[Isolated rectal ectasia: a rare cause of chronic constipation. Apropos of 2 cases].

We present two patients with intractable constipation, in which investigation revealed a huge rectal ectasia without apparent other anomaly. Findings at operation are similar to those observed in the focal ectasia of the terminal bowel that we have already described in some cases of low anal deformities. As long as the physiopathology of this anomaly is not elucidated, complete amputation of the rectum seems to be the treatment of choice.