Ureaplasma parvum causing life-threatening disease in a susceptible patient

A 56-year-old man with lymphoma developed orchitis followed by septic arthritis of his right glenohumeral joint. Synovial fluid cultures were negative but PCR amplification test was positive forUreaplasmaparvum. The patient was treated with doxycycline. Two and a half years later, the patient presented with shortness of breath and grade III/IV diastolic murmur on auscultation. Echocardiography revealed severely dilated left heart chambers, severe aortic regurgitation and several mobile masses on the aortic valve cusps suspected to be vegetations. He underwent valve replacement; valve tissue culture was negative but the 16S rRNA gene amplification test was positive for U. parvum.

He was treated again with doxycycline. In an outpatient follow-up 1 year and 3 months later, the patient was doing well. Repeated echocardiography showed normal aortic prosthesis function.

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