title: Severe chest pain due to infectious mononucleosis.
abstract: Infectious mononucleosis complicated by acute myopericarditis was finally diagnosed in a 17-year-old boy who presented with sore throat and severe left-sided chest pain. A mononucleosis spot test and heterophil agglutination test turned strongly positive only on the sixth hospital day. The natural course of infectious mononucleosis complicated by myopericarditis appears to be benign.
mesh_terms: D000293:Adolescent; D004562:Electrocardiography; D006801:Humans; D007244:Infectious Mononucleosis / Q000097:blood / Q000150:complications*; D008297:Male; D009205:Myocarditis / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D010146:Pain / Q000209:etiology; D010493:Pericarditis / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D013909:Thorax