Triangular opacity right lower hemithorax.
D000236:Adenoma / Q000000981:diagnostic imaging*; D000328:Adult; D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging*; D011859:Radiography