title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 34-1980.
mesh_terms: D000293:Adolescent; D001935:Branchioma / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007244:Infectious Mononucleosis / Q000150:complications / Q000175:diagnosis; D008221:Lymphoid Tissue / Q000473:pathology; D008297:Male; D009205:Myocarditis / Q000150:complications / Q000175:diagnosis