Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As seen previously , there is complete opacification of the left lower lung . The left upper lung remains aerated . There is a stable left apical cap which represents loculated pleural fluid as seen on prior CT . The right lung is slightly hyperexpanded . A nodular opacity projecting over the right lower lung measures 11 mm and likely represents a nipple shadow . If there is clinical concern for mass , a repeat view should be obtained with nipple markers . Sclerotic bone lesions are better appreciated on prior CT .
    OUTPUT:
    
1 . Stable left lower lung opacification , with loculated left pleural effusion . 2 . Nodular opacity overlying the right lower lung likely represents a nipple shadow , however if confirmation of this is needed , repeat views can be obtained with a nipple marker .