Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the mediastinal and aortic contours are similar in appearance to prior studies with an enlarged pulmonary artery and a tortuous aorta . The heart is moderately enlarged . The previously described left lower lobe mass is not well seen on this study , and is better characterized on recent prior CTA of the chest . There is no evidence of pleural effusion , pulmonary edema , or focal consolidation concerning for pneumonia . Surgical clips are again seen projecting over the right breast .
    OUTPUT:
    
No evidence of pneumonia . Stable moderate cardiomegaly .