Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated . Increased retrocardiac opacity with less distinctness of the lateral border of the thoracic aorta since ___ probably reflects increasing atelectasis in the setting of new elevation of the left hemidiaphragm which supports volume loss . However , underlying infection in the appropriate clinical scenario can not be completely excluded . Slightly increased opacity in the right lower hemithorax on the frontal view may reflect positional changes . A right lower lobe subpleural nodule is better appreciated on the CT from ___ . The heart remains moderate to severely enlarged , similar to the prior exam . Mediastinal contours and position of the trachea on the frontal view are also similar to the prior CT from ___ . No pneumothorax or pleural effusion . No frank pulmonary edema . Degenerative changes in the thoracic spine are extensive in the bones appear relatively demineralized , unchanged . Surgical clips in the left upper abdomen are new from the prior chest radiographs , but present on the prior CT .
    OUTPUT:
    
1 . Increased retrocardiac opacity with new elevation of the left hemidiaphragm is probably increasing atelectasis ; however , underlying pneumonia can not be completely excluded in the appropriate clinical situation . 2 . Moderate to severe cardiomegaly , unchanged . No pulmonary edema or effusion . 3 . Please see CT report of ___ for recommendation of nodule follow - up .