Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath is grossly stable in position likely terminating at the proximal right atrium . Cardiac and mediastinal silhouettes are similar . There is persistent elevation of the left hemidiaphragm with possible overlying increase in left base atelectasis . Increased right base opacity is also seen , possibly due to atelectasis , but infection or aspiration is not excluded . No pleural effusion is seen . There is no pneumothorax .
    OUTPUT:
    
Increase in bibasilar opacities could be due to worsening atelectasis or pneumonia / aspiration . No overt pulmonary edema is seen . Persistent elevation of left hemidiaphragm .