title: Massive pericardial effusion in a hypothyroid child.
abstract: A child with Down's syndrome and long standing severe hypothyroidism had a massive pericardial effusion without cardiac tamponade. The effusion completely resolved with medical treatment without pericardiocentesis.
mesh_terms: D000293:Adolescent; D004314:Down Syndrome / Q000150:complications; D006801:Humans; D007037:Hypothyroidism / Q000150:complications* / Q000188:drug therapy; D008297:Male; D010490:Pericardial Effusion; D013974:Thyroxine / Q000627:therapeutic use
chemical_list: D013974:Thyroxine