Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is moderately enlarged , overall stable compared to the exam from ___ ; however , increased from the exam from ___ . There is mild prominence of the pulmonary vasculature , however no definite pulmonary edema is identified . The hilar and mediastinal contours are unremarkable . Post-radiation changes at the lung apices appear unchanged . No new focal consolidation concerning for infection is identified . There is no pleural effusion or pneumothorax . There appears to be interval improvement of the diffuse interstitial markings seen throughout the lungs . The visualized osseous structures are unremarkable . The bones demonstrate degenerative changes .
    OUTPUT:
    
Interval improvement of the diffuse interstitial markings previously seen throughout the lungs bilaterally .