title: A reversible cause of cor pulmonale in a five-year-old boy.
mesh_terms: D000234:Adenoids / Q000473:pathology*; D000402:Airway Obstruction / Q000150:complications*; D002675:Child, Preschool; D006801:Humans; D006984:Hypertrophy; D008297:Male; D014066:Palatine Tonsil / Q000473:pathology*; D011660:Pulmonary Heart Disease / Q000209:etiology*