Endocarditis caused by Lactococcus lactis subsp. lactis in a patient with atrial myxoma: a case report

We report a case of subacute endocarditis in a 55-year-old patient affected by left atrial myxoma and with a severe mitral regurgitation. Lactococcus lactis subsp. lactis was isolated from blood cultures and infection was eliminated by treatment with amoxicillin–clavulanic acid.