Patient: Male, 76 Final Diagnosis: Aorto-enteric fistula Symptoms: Abdominal pain • bloody vomiting • shock Medication: - Clinical Procedure: CT abdomen with contrast Specialty: Gastroenterology • vascular surgery.
Objective:

Rare disease.
Background:
Primary Aorto-Enteric Fistula (PAEF) is a unique and rare life threatening communication between the Aorta and Gastrointestinal Tract with an unusually high mortality rate and delayed diagnosis. Aortic abdominal aneurysms are implicated in a vast majority of cases while cancer as an etiology of PAEF is extremely rare.
Case report:
We present the first case report of a PAEF secondary to Large B-Cell Lymphoma, followed by a review of literature in regards to malignant aorto-enteric fistulae.
Conclusions:
We conclude that physicians should maintain a high index of suspicion for PAEF in any patient with unexplained anemia and history of aortic abdominal aneurysm complicated by cancer.