Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison is made to previous study from ___ . There is atelectasis at the lung bases . The heart size is upper limits of normal but stable . Several old right - sided rib fractures are seen . There is also some loculated fluid at the right lower chest . No pneumothoraces or signs for overt pulmonary edema . Hardware within the thoracic spine has been placed since the prior study . A reverse total shoulder arthroplasty is partially visualized on the right side .
    OUTPUT:
    
Atelectasis at the lung bases . No signs for overt pulmonary edema or definite consolidation .