Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were obtained . The heart size is normal . Calcification in the aortic arch is noted . The hila are unremarkable . There is no pleural effusion or pneumothorax . Increased bilateral interstitial markings , slightly more so throughout the right lung field are seen . Additionally , more focal opacities are appreciated on the frontal view in the right mid lung field .
    OUTPUT:
    
Increased interstitial markings , especially in the right lung field which may be consistent with infection or asymmetric pulmonary edema . Chronic interstitial process is also possible . More focal opacity in the right lateral mid lung zone may be due to infection , no priors are available for comparison to assess for interval change / chronicity . Recommend follow - up to resolution to exclude an underlying pulmonary lesion .