title: Pericarditis. An initial manifestation of juvenile rheumatoid arthritis.
mesh_terms: D000208:Acute Disease; D001171:Arthritis, Juvenile / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008297:Male; D010490:Pericardial Effusion / Q000175:diagnosis; D010493:Pericarditis / Q000209:etiology*