Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal and nasogastric tubes are present . The position of the vascular sheath is unchanged . The right lung is clear . The left hemidiaphragm is now silhouetted suggesting atelectasis or consolidation in the left base . Midline surgical skin closures are noted . The heart is not enlarged . The osseous structures are normal for age .
    OUTPUT:
    
New left basilar density which could represent atelectasis or early consolidation . Followup advised .