Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly has been stable compared to exams dated back to at least ___ . The hilar and mediastinal contours are normal . No focal consolidation turning for pneumonia are identified . Diffuse bilateral interstitial abnormality has been stable compared to exams dating back to at least ___ . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . No acute intrathoracic abnormalities identified . Stable , mild cardiomegaly . 2 . Chronic interstitial lung disease .