Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung along volumes remain low . Heart size is mildly enlarged but not substantially changed . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Minimal patchy left basilar opacity likely reflects atelectasis in the setting of low lung volumes . No focal consolidation , large pleural effusion or pneumothorax is detected . No acute osseous abnormality is visualized .
    OUTPUT:
    
Low lung volumes with minimal patchy left basilar opacity , likely atelectasis .