Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged including mild cardiomegaly . There is marked elevation of the left hemidiaphragm with streaky associated opacification suggesting minor associated atelectasis . There is a round nodular focus projecting over the right mid lung , most likely a nipple shadow but confirmation with a PA view with nipple markers is suggested when clinically appropriate . Degenerative changes are similar along the mid to lower thoracic spine .
    OUTPUT:
    
1 . No evidence of acute disease . 2 . Nodular focus projecting over the right lower lung , most likely nipple shadow ; confirmation with an additional PA view with nipple markers is suggested in follow - up . 3 . Marked similar elevation of the left hemidiaphragm .