Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . Several nodules in the left lung appear unchanged ; to some extent these may be calcified . A nodular focus projecting over the lower right chest is most suggestive of a nipple shadow and unchanged . Streaky opacities are somewhat increased at the left lung base but probably due to minor atelectasis . There is no definite pleural effusion or pneumothorax . Compression deformities along the upper lumbar spine are not well visualized , but there is no indication of change . No foreign body is identified .
    OUTPUT:
    
Streaky left basilar opacities most suggestive of atelectasis . No foreign body identified .