Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated , though the diaphragms are not flattened . The heart is not enlarged . Blunting of the right heart border seen only on frontal radiograph likely reflects a mediastinal fat pad . The patient 's known mediastinal mass , seen on multiple prior CT scans , is not well delineated radiographically . The aorta is mildly unfolded . There is minimal subsegmental atelectasis and / or scarring . No frank consolidation or gross effusion identified . Possible trace right pleural effusion . Small calcified and noncalcified nodules seen on prior CTs are not well delineated radiographically . Old healed right - sided rib fractures noted . Degenerative changes in the thoracic spine noted .
    OUTPUT:
    
Equivocal trace right pleural effusion and minimal atelectasis . Otherwise , no acute pulmonary process identified .