title: Middle-lobe atelectasis due to sarcoidosis with pleural effusion.
mesh_terms: D000368:Aged; D001982:Bronchial Diseases / Q000150:complications*; D006801:Humans; D010996:Pleural Effusion / Q000150:complications* / Q000473:pathology; D001261:Pulmonary Atelectasis / Q000209:etiology* / Q000473:pathology; D012507:Sarcoidosis / Q000150:complications* / Q000473:pathology