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A 71-year-old woman was admitted to the hospital after consuming food due to acute malnutrition and abdominal pain. Reduced patency of all jejunoileal branches and the superior mesenteric artery was observed in the abdominal computed tomography scan. Abdominal angina was caused by atherosclerosis, the frequent use of triptans for recurrent migraines, the JAK2 mutation, and a high platelet count. The patient’s complete parenteral nutrition was not spared, despite the development of a collateral circulation preventing fatal acute ischemia.