Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC has been retracted , and now terminates in the mid-to - lower SVC . There is no significant pleural effusion or pneumothorax . Heart size is normal . Focal right upper lobe opacity is unchanged . Rightward deviation of the trachea and elevation of the right hemidiaphragm again suggests volume loss .
    OUTPUT:
    
Persistent right upper lobe opacity with volume loss . Please follow radiographically as patient 's symptoms resolve ; if findings do not clear , chest CT should be ordered .