Left perihilar density in a patient with respiratory failure.
D000368:Aged; D001984:Bronchial Neoplasms / Q000150:complications* / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D001261:Pulmonary Atelectasis / Q000150:complications; D012131:Respiratory Insufficiency / Q000209:etiology*