Rare Case of Gastric Arteriovenous Malformation with Persistent Anemia in a Patient with Recurrent Arteriovenous Malformation Widespread in Gastrointestinal Tract

Arteriovenous malformation (AVM) is an abnormal entanglement of blood vessels. AVMs in the gastrointestinal (GI) tract is a rare condition and are often found incidentally during GI bleeding investigations. We present a case of a 57-year-old patient with chronic anemia who was diagnosed with AVM of the GI tract by colonoscopy treated with argon based laser therapy.Pt re-developed arteriovenous malformation in duodenum and ileum which are considered as unusual locations of this clinical entity. We also discussed pathogenesis, diagnosis, and reviewed available treatment options for GI AVMs.