Splenic and Kidney Infarct: Sequelae of Subacute Streptococcus mitis Bacterial Endocarditis

Infective endocarditis (IE) is caused due to the vegetation on the heart valves, myocardium wall, or the pacemaker leads. Vegetation is a lesion that appears as a consequence of successive deposition of platelets and fibrin on the endothelial surface of the heart. Colonies of microbes can be usually found under the vegetation. Heart valves are involved more frequently as compared to other places. Streptococcus mitis, formerly known as S. mitior, is a commensal of the oral flora, however, if there of loss of integrity of the mucous membrane, the infection may disseminate to the blood flow. We describe here a rare presentation of S. mitis, causing IE and its complications in an immunocompetent patient.