Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is borderline in size . The aorta shows mild unfolding and calcification . The main pulmonary artery contour is perhaps minimally prominent . There is no pleural effusion or pneumothorax . Streaky opacities in the right middle lobe are not specific , although commonly due to atelectasis . The bones appear demineralized .
    OUTPUT:
    
Patchy right middle lobe opacity , which could be seen with atelectasis . Pneumonia is not excluded , however .