Polyarteritis nodosa (PAN) is a rare form of vasculitis affecting the medium-size arteries1,2. Even with minimal clinical symptoms, presentation can be dramatic when seen with advanced imaging techniques that show aneurysm rupture and hemorrhage.
A 59-year-old man was admitted to the emergency department with abdominal pain. A C-reactive protein 160 mg/dl, hemoglobin 5.1 g/dl, and blood pressure 153/84 mm Hg were …