Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart remains moderately enlarged . The aortic knob is calcified aorta remains mildly tortuous . The mediastinal and hilar contours are unremarkable . There is no pulmonary vascular congestion . Mild diffuse interstitial markings are demonstrated bilaterally , better assessed on the previous chest CT , and likely reflective of a mild chronic interstitial lung disease . No focal consolidation , pleural effusion or pneumothorax is seen . Mild centrilobular emphysema is better seen on the prior CT . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .