Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . The pulmonary vasculature normal . Hazy opacity within the right lung base is likely located within the right middle lobe , and is concerning for an area of infection . The component of this opacity appears to reflect the right nipple . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Ill - defined hazy opacity in the right lung base is concerning for pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .