Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear within normal limits . On the lateral view , there is a prominent focal infrahilar opacity that has a somewhat oval nodular appearance . It may coincide with patchy streaky left lower lobe opacities and a lingular opacity suggesting minor atelectasis or scarring , but perhaps more likely correlates with streaky right infrahilar opacification . Otherwise , the lungs appear clear . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
Nodular infrahilar opacity , which may correspond to streaky right infrahilar opacities . This appearance may be nodular appearance of the lower airway inflammation , infection , or even pneumonia . However , a true pulmonary nodule can not be excluded . Depending on clinical circumstances , either short - term followup radiographs are recommended in order to see whether it persists or alternatively chest CT could be considered .