Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs are hyper - expanded . A new lingular opacity partially obscures the left heart border , without clear correlate on lateral view . Differential diagnoses include developing pneumonia , atelectasis or , if the patient has received radiation therapy to the chest , radiation fibrosis . Additional oblique views are recommended for further assessment . In addition , there is a new rounded opacity in the right upper lung projecting over the posterolateral left ___ rib , which may be a nodule . CT is recommended for further evaluation , especially to evaluate for metastatic disease in the lung and pleural surfaces .
    OUTPUT:
    
1 . Possible pneumonia , atelectasis , or , given the appropriate clinical history , radiation fibrosis in the lingula . Additional oblique views are recommended for further evaluation . 2 . Possible new right upper lung nodule . CT is recommended for further evaluation of metastatic disease in the lung and additionally , in the pleural surfaces .