This patient presented to the emergency depament with abdominal pain. What is the MOST significant diagnosis?: (A) Superior mesenteric aery embolus, (B) Superior mesenteric vein thrombosis, (C) Aoic dissectionLeaking aoic aneurysm, (D) Leaking aoic aneurysm
Answer is A. There is a paially occlusive filling defect or defects within the contrast opacified superior mesenteric aery characteristic for a thromboembolus.