Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . Aside from streaky opacification of the right costophrenic sulcus suggesting minor atelectasis or scarring , the lungs appear clear . There is no definite pleural effusion . There is an eventration of the right hemidiaphragm with associated left basilar opacity which is probably attributable to associated atelectasis . Scoliosis appears unchanged .
    OUTPUT:
    
Patchy basilar opacities most suggestive of atelectasis with no definite evidence for acute disease .