Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal contours are unremarkable . A pectus deformity is present . Patchy opacity in the right lower lobe could represent atelectasis though infection is not excluded . No pleural effusion or pneumothorax is definitively noted . Vascularity is not engorged . Old left - sided fourth rib fracture is present . The patient is status post bilateral mastectomies with bilateral drains noted .
    OUTPUT:
    
Patchy opacity in the right lower lobe could represent atelectasis , though infection is not excluded .