What diagnosis is suggested by the results of this coronary angiogram?

Answer D. Polyarteritis nodosaThese findings on coronary angiography are most consistent with severe generalized coronary arteritis. This 25-year-old woman had been given a diagnosis of polyarteritis nodosa 3 years earlier and was receiving prednisolone maintenance therapy when she presented with cardiac arrest. Although severe cardiac involvement in polyarteritis nodosa is unusual, it can result in myocardial infarction and confers a poorer prognosis. Despite treatment, the patient died a few months later.