[Ulcerating duplication of the ileum as rare cause of massive intestinal hemorrhage in the adult].

In this paper is presented the case of a 27 year old woman in whom a congenital duplication of the distal ileum led to a massive hemorrhage. Heterotopic gastric mucosa was found in the ileal lesion and ulcer formation histologically proven. This case shows that congenital lesions of this sort may not come to the attention of the pediatrician or pediatric surgeon but become the concern of the surgeon in adult life.