Uncommon cause of massive gastrointestinal bleeding

Introduction. The cause of gastrointestinal bleeding sometimes could be hard to identify. In these cases, series of examinations have to be performed and the result could be surprising. We report the case of a 53 years old man with a medical history of hypertension, pulmonary emphysema, obliterative vascular disease and a left kidney cyst (proved by computertomography). Methods: Reconstructive vascular surgery was planned, but meanwhile gastrointestinal haemorrhage occurred. Upper panendoscopy and colonoscopy were performed, but the source of the bleeding could not be identified. Supposing small intestinal bleed…