Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflation of the lungs suggests COPD . Minimal streaky left basilar opacity may reflect atelectasis or aspiration . No focal consolidation or pneumothorax . Blunting the of the left costophrenic angle posteriorly suggests a small effusion . The pulmonary vasculature is not engorged . The cardiomediastinal silhouette is stable with prominence of the tortuous thoracic aorta and mild calcification of the aortic knob . The hilar contours are within normal limits . There is new deformity of the left lower lateral ribs compared to the prior ___ study concerning for nondisplaced or minimally displaced rib fractures . Thoracic kyphosis and degenerative changes of the thoracic spine are redemonstrated .
    OUTPUT:
    
1 . New deformity of the left lower lateral ribs compared to ___ may represent nondisplaced or minimally displaced rib fractures in the setting of recent trauma . 2 . Small left pleural effusion and left basilar streaky opacity , possibly atelectasis or aspiration .