Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . The mediastinal and hilar contours are unremarkable . No pulmonary edema is present . There is no focal consolidation , pleural effusion or pneumothorax . Streaky left lower lobe opacity may reflect atelectasis . No acute osseous abnormalities seen .
    OUTPUT:
    
Streaky left lower lobe opacity likely reflects minimal atelectasis .