Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal lung volumes without pleural effusion , focal consolidation or pneumothorax . There is prominence of the interstitial markings , unchanged from prior . Hilar and mediastinal silhouettes are stable . The heart size is normal . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .