Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular catheter courses into the mid SVC . Right axillary clips and sternotomy wires are constant . Increasing opacity at the left lung base from yesterday is likely atelectasis . The cardiac silhouette remains moderately enlarged from ___ . There is no pulmonary edema . No pneumothorax or definite pleural effusion . Postoperative appearance of the mediastinum is unchanged .
    OUTPUT:
    
Increasing left lung base atelectasis from yesterday .