Polyarteritis Nodosa

Polyarteritis nodosa  is a vasculitis of medium & small-sized arteries, which become swollen and damaged from attack by rogue immune cells. (from Wikipedia)

Image from NEJM (link)  Coronary angiogram demonstrating inflammation of the coronary arteries

“These 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.” (reblogged from NEJM)

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