Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is mild right base atelectasis . Slight prominence of the interstitial markings is stable which may be due to chronic changes versus minimal interstitial edema . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Mild base atelectasis . Slight diffuse prominence of the interstitial markings , stable compared to prior which may be due to chronic changes versus minimal interstitial edema .