Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy . The aortic contours appear unchanged on radiography . The cardiac , mediastinal and hilar contours appear stable . Streaky basilar opacities have improved and residual remaining opacities are more suggestive of atelectasis than pneumonia . Surgical clips project over the right axillary region . Right - sided rib deformities appear unchanged with associated slight pleural thickening . There is no definite pleural effusion or pneumothorax . The bones are probably demineralized . Loss in height among several mid through lower thoracic vertebral bodies appears unchanged .
    OUTPUT:
    
Persistent streaky basilar opacities , considerably decreased and most suggestive of atelectasis or scarring . No definite acute disease .