Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Basilar interstitial opacities appear increased from prior . Findings likely reflect superimposed mild edema on underlying interstitial lung disease or possibly simply progression of the chronic lung disease . No confluent opacity is identified to suggest pneumonia . There is no large pleural effusion . Mediastinal and hilar contours are within normal limits . Cardiac contours remain mildly enlarged .
    OUTPUT:
    
Increased interstitial basilar opacities which likely reflects progression of underlying chronic lung disease and some mild superimposed pulmonary edema .