THE RESURGENCE OF CORYNEBACTERIUM DIPHTHERIAE: A RARE CASE OF INFECTIVE ENDOCARDITIS
2020
Corynebacterium species or “diphtheroids” are often considered as non-pathogenic components of the normal skin flora when isolated from blood culture. Invasive diseases like infective endocarditis with Corynebacterium diphtheriae are an unusual presentation. We report the case of a 34-year-old man with a medical history of prosthetic valve replacement 12 years back who presented with acute visual loss both eyes and high-grade fever. Echocardiography revealed small particles in the left ventricular outflow tract and the left ventricle probably small detached vegetations. Blood cultures were positive for non-toxigenic C. diphtheriae. The patient was diagnosed as prosthetic valve endocarditis caused by non-toxigenic C. diphtheriae considering the whole clinical picture, including the patient’s medical history, physical examination, and blood cultures.
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