Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky left base opacity is felt to most likely represents atelectasis / scarring . No definite focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac silhouette is top - normal . Mediastinal contours are unremarkable . Surgical clips are re - demonstrated in the epigastric region . No evidence of free air is seen beneath the diaphragms .
    OUTPUT:
    
Streaky left basilar opacity , likely atelectasis .