Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The main pulmonary artery contour is slightly prominent , but there is no evidence for pulmonary edema . A nipple shadow is again seen on the left . Patchy basilar opacity suggest minor atelectasis or perhaps scarring which appears unchanged . There is no pleural effusion or pneumothorax . The osseous structures are unremarkable .
    OUTPUT:
    
Patchy opacities suggesting minor atelectasis without definite evidence for pneumonia .