Polyarteritis nodosa (PAN) is a systemic vasculitis histologically characterized by necrotic lesions of medium-sized and small arteries, mostly in their bifurcations. PAN is a multi-organ disorder that affects more visceral arteries and the consequences of inflammation and necrosis can lead to ischemia of vital organs. The etiology of the disease is unknown. There are four forms - cutaneous (which is most common), classic, and microscopic system. PAN preferably affects the renal and coronary arteries. The most common finding of affected blood vessels are aneurysm, thrombosis and stenosis. Cardiac complications are rare in children, but 35% of patients in adulthood is developing a complication. The most common complications in adulthood is cardiac decompensation and can be explained as a consequence of long-standing hypertension and changes in coronary blood vessels. The incidence of myocardial infarction is low, particularly in young patients. (1-3)

This paper describes the 25-year-old patient with acute myocardial infarction with the changes in the coronary blood vessels and persistent arterial hypertension as a result of PAN diagnosed in childhood.