Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Examination is suboptimal due to underexposure . Again seen is diffuse mild interstitial pulmonary abnormality . No focal consolidation . Mild enlargement of the cardiac shadow is stable . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
1 . Chronic interstitial pulmonary disease , better evaluated on prior CT . 2 . Mild cardiomegaly . 3 . No acute cardiopulmonary process .