Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest subcutaneous port central venous line tip is in the mid to low SVC . Irregular opacity projecting over the right midlung appears similar to prior . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Bilateral pleural effusions are tiny . No pneumothorax . The aortic knob calcifications appear similar to prior .
    OUTPUT:
    
1 . Right midlung opacity appears similar to prior and could be pneumonia or atelectasis . Correlation with previous imaging is needed . After comparison , if uncertainty remains , chest CT would be the next recommendation . 2 . Bilateral pleural effusions are tiny .