Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle right infrahilar opacity is worrisome for pneumonia . Recommend followup to resolution . Slight prominence of the right hilum could relate to underlying associated mild lymphadenopathy . Linear opacity in the medial right mid lung suggests subsegmental atelectasis / scarring . The left lung is clear . No pleural effusion or pneumothorax is seen . The heart is normal in size . Mediastinal contours are grossly unremarkable .
    OUTPUT:
    
Right infrahilar opacity worrisome for pneumonia . Recommend followup to resolution .