Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is at the upper limits of normal , likely exaggerated by AP technique . The mediastinal contours demonstrate a mildly tortuous aorta with calcified atherosclerotic disease of the aortic knob . The lungs again demonstrate a prominent reticular pattern particulary at the bases without clear evidence of new consolidation . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Chronic interstitial lung disease , but no definite evidence of pneumonia .