Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal and unchanged . As seen on CT from ___ , there is left upper lobe collapse . There is associated hyperexpansion of the right lung . There is left basilar atelectasis . No pleural effusion . No pneumothorax . Contrast is visualized in the colon secondary to recent contrast administration . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
As seen on CT from ___ , left upper lobe collapse with compensatory hyperexpansion of the right lung .