Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Midline sternotomy wires and prosthetic valves are unchanged . The right - sided IJ central venous catheter tip sits in the mid SVC . The cardiac and mediastinal contours are stable . There continues to be bibasilar atelectasis , more prominent on the right than the left , with a small right pleural effusion . Bilateral chest drains are in place ; a tiny left pneumothorax is unchanged from prior exam .
    OUTPUT:
    
Bibasilar atelectasis , right greater than left , with small right pleural effusion . Unchanged tiny left apical pneumothorax .