Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are now essentially clear noting streaky left basilar opacity likely due to atelectasis . The cardiomediastinal silhouette is within normal limits given low lung volumes . Median sternotomy wires and mediastinal clips are noted . No acute osseous abnormalities identified .
    OUTPUT:
    
Left basilar opacity most likely atelectasis although clinical correlation regarding possibility of infection is suggested .