INDIUM-111 MONOCLONAL ANTIMYOSIN ANTIBODY AND MAGNETIC-RESONANCE-IMAGING IN THE DIAGNOSIS OF ACUTE LYME MYOPERICARDITIS

Background: Lyme borreliosis is a tick-borne multisystem disorder that may present as self-limiting early or persistent chronic diseases of the skin, nervous system, joints, heart, and other organs. Cardiac inv olvement has mainly been reported as acute atrioventricular conduction disturbances or transient ventricular dysfunction. Methods and Result s: We treated a patient with clinical signs of acute myopericarditis a nd serologic evidence of Lyme borreliosis confirmed by silver staining of endomyocardial biopsy specimens and indium 111-monoclonal antimyos in antibody scan, which we believe has not been reported previously. A dditionally, magnetic resonance imaging revealed epicardial and myocar dial areas of increased intensity. Conclusion: Indium 111-monoclonal a ntimyosin antibody scanning and magnetic resonance imaging might play an additional important role in assessing and confirming the diagnosis of Lyme carditis in the presence of clinical symptoms and positive se rologic findings.