Figure 11

Traditional x-ray angiography may still be employed in most centers to diagnose polyarteritis nodosa involving the visceral arteries, such as the focal, segmental aneurysms (left panel, up to 4.5 cm in diameter) of the hepatic artery seen in this 77 year-old woman with acute abdominal pain, syncope and bleeding within the liver parenchyma by CT . The angiographic appearance was consistent with PAN. Coil embolization (right panel) was performed with resolution of bleeding. Images courtesy Dr. Leslie Cooper.