Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly with a left ventricular predominance is re - demonstrated . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Elevation the right hemidiaphragm is again noted with associated right basilar atelectasis . Retrocardiac patchy opacity may reflect atelectasis though infection is not excluded in the correct clinical setting . No pleural effusion or pneumothorax is detected . S - shaped rotary scoliosis of the thoracolumbar spine is again noted .
    OUTPUT:
    
Retrocardiac opacity , potentially atelectasis , though infection can not be excluded in the correct clinical setting . Persistent elevation of the right hemidiaphragm with right basilar atelectasis .