A Case of Corynebacterium diphtheriae Native Mitral and Tricuspid Valve Infective Endocarditis Complicated by Shower Emboli.

Infective endocarditis is a rare phenomenon that may have devastating consequences. While uncommon, the spectrum of causative organisms can include Corynebacterium species. Corynebacterium diphtheriae endocarditis bears a high potential for systemic complications and overall mortality. We present a case of mitral and tricuspid native valve endocarditis caused by C. diphtheriae in an immunocompetent patient and highlight the severe manifestations of this condition.