A 44-year-old man with recurrent ST-segment elevation: a case report of two presentations of Granulomatosis with Polyangiitis.

This case report describes an unusual case of myocarditis and coronary arteritis presenting acutely in the same patient and emphasizes the importance of considering systemic autoimmune conditions when encountering primarily cardiac presentations. Early recognition and diagnosis of cardiac involvement will improve the long-term outcomes in these patients.