Pericarditis as the only manifestation of infectious mononucleosis.
D000208:Acute Disease; D002648:Child; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D007244:Infectious Mononucleosis / Q000150:complications* / Q000175:diagnosis; D008297:Male; D010493:Pericarditis / Q000175:diagnosis / Q000209:etiology*