Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains mildly enlarged . Mediastinal and hilar contours are unchanged . There is no pulmonary vascular congestion . Lung volumes remain reduced with increased interstitial opacities predominantly within a peripheral and basilar distribution compatible with chronic interstitial lung disease . Findings are relatively unchanged compared to the prior exam , with no new focal consolidation demonstrated . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
No acute cardiopulmonary process . Chronic interstitial lung disease , relatively unchanged compared to the previous exam .