Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are diffuse interstitial opacities which may reflect pulmonary edema , though atypical infection and chronic interstitial lung disease are also within the differential . No confluent consolidation is identified . There is no pleural effusion . No pneumothorax is evident . Mediastinal and hilar contours are within normal limits . There is moderate cardiomegaly .
    OUTPUT:
    
1 . Diffuse interstitial opacities which may reflect mild pulmonary edema , however , atypical infection and chronic lung disease are also within the differential . 2 . Moderate cardiomegaly