[A rare cause of rectal hemorrhage]

Report of a patient who discharged water and doughy stools since birth. At the age of 2 yrs. 10 mo. he had terry stools, a perforation of the sigmoid was caused by an ulcer, the perforation was oversewn. Further discharge of liquid stools. Rectoscopy, endoradiography, rectal biopsy with identification of gastric mucosa. 99mTc-pertechnetate was accumulated in the rectal mucosa. At the age of 4 years, demucosation and pull-through was done. A cleft vertebral body and a finger-shaped diverticulum were found and interpreted as sigmoid duplication. This is the only such case observed by us in 32 years.