Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . A pigtail catheter projecting over the right upper quadrant is also unchanged . The cardiac , mediastinal and hilar contours appear unchanged . There is mild - to - moderate relative elevation of the right hemidiaphragm with streaky opacification seen along the apex of the diaphragm and posteriorly , most suggestive of atelectasis , which has somewhat increased since a CT from ___ and radiographs from ___ . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Increasing right basilar opacification and volume loss . Although pneumonia is difficult to exclude , the findings are fairly typical for atelectasis , although increased . Clinical correlation is suggested regarding the significance of increasing right - sided opacification in the right lower lobe ; follow - up radiographs could be considered if needed clinically .