title: Histiocytosis X with pericardial effusion.
mesh_terms: D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000150:complications* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D010490:Pericardial Effusion / Q000209:etiology*; D012871:Skin Diseases / Q000150:complications* / Q000473:pathology