Acute Myelogenous Leukemia as a Rare Cause of Duodenal Ulcers

Acute myelogenous leukemia (AML) is the most prevalent acute leukemia and is defined by the presence of myeloid blasts in the blood or bone marrow. Rarely, AML can be present in the gastrointestinal tract. We present a patient with AML undergoing treatment with decitabine who presented with hematemesis. He underwent endoscopy which revealed two 5 mm duodenal ulcers that were biopsied, and pathology was consistent with AML. Endoscopy should be considered in patients with leukemia who present with nausea, vomiting, or signs of bleeding to evaluate for gastrointestinal involvement. Patients diagnosed with AML are treated with chemotherapy.