Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . A subtle opacity is noted in the right upper lobe which could represent an early pneumonia . Given the linear appearance of this opacity , the possibility of background scarring in this area is also considered . Otherwise the lungs appear clear . No pleural effusion or pneumothorax is seen . Biapical pleural parenchymal scarring is noted . The heart size is normal . The mediastinum appears slightly prominent which could be related to vascular ectasia .
    OUTPUT:
    
Linear and subtle nodular opacity in the right upper lobe which could reflect pneumonia . Recommend followup to resolution .