[Digestive hemorrhage as the first symptom of a rupture of an abdominal aortic aneurysm]. / Hemorragia digestiva como primer síntoma de rotura de aneurisma de aorta abdominal.

Primary aortoduodenal fistula is an uncommon complication of abdominal aortic aneurysm and is a rare cause of gastrointestinal bleeding. A case of primary arterioenteric fistula due to the rupture of an abdominal aortic aneurysm into the third portion of the duodenum is presented. Aneurysmectomy, duodenal repair, and extra-anatomic revascularization of the legs was performed. Diagnosis of primary aortoenteric fistula is difficult. The usual explorations are not demonstrative, and exploratory laparotomy is often mandatory.

[Cholesterol embolism: an infrequent cause of ischemic ulcers of the lower extremities]. / Embolismo de colesterol: una causa poco frecuente de úlceras isquémicas de las extremidades inferiores.

A case of cholesterol embolism with digital ulcerations is reported. Pathologic anatomy, Radiologic images, symptomatology and treatment of such pathology are discussed.