Acute myopericarditis due to human granulocytic anaplasmosis supplementary materials

We present a case of a 54-year-old gentleman with a history of hypertension and chronic HIV who

presented with fever and epigastric pain, found to have elevated troponin-I levels and diffuse STsegement

elevations on ECG without clinical evidence of ischemia concerning for myopericarditis. Initial

laboratory findings also included thrombocytopenia and elevated aminotransferases as well as computed

tomography imaging revealing splenic infarcts. Given plausible exposure to ticks, this led to the eventual

diagnosis of anaplasmosis confirmed on PCR assay. CardiacMRI images confirmed myocardial involvement,

which resolved with antibiotic treatment. While rare, cardiac involvement is possible sequelae of

anaplasmosis infection as illustrated by this case.