Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Confluent opacity in the right perihilar region extends nearly to the lung periphery and is associated with marked volume loss with shift of cardiomediastinal structures to the right as well as marked elevation of right hemidiaphragm . Though this appears similar to the recent study of earlier the same date , the degree of volume loss has markedly increased since an earlier chest x-ray of ___ . Cystic lucencies persist at the right apex . Smaller cystic lucencies are also demonstrated in the anterior portion of the right lung in the retrosternal area and these probably correspond to areas of paraseptal emphysema on the recent chest CT exam . Moderate right pleural effusion is partially loculated laterally , similar to earlier today , but the loculation is new from ___ . Left lung and pleural surfaces are clear . No acute skeletal findings .
    OUTPUT:
    
Large conglomerate opacity in right juxtahilar region with associated volume loss is concerning for a postobstructive process , likely a combination of collapse and consolidation in this patient with recent history of multilobar pneumonia and underlying diagnosis of lung cancer . A component of radiation pneumonitis is also possible if the patient has been undergoing such therapy within an expected time course for this complication . Further evaluation with contrast - enhanced CT may be helpful for more complete characterization of this region , as well as to evaluate a loculated right pleural effusion .