Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Volume loss in the right hemithorax is seen with streaky right midlung and perihilar opacity with rightward shift of the mediastinum . These findings are presumably in part due to treatment for patient 's known cancer however underlying mass is also possible . There is no prior to evaluate for interval change . The left lung is clear . There is no pneumothorax on either side . No acute osseous abnormality detected .
    OUTPUT:
    
Right sided volume loss and streaky right midlung and perihilar opacity likely in part due to treatment for patient 's known cancer however underlying mass can not be adequately assessed . There is no prior to evaluate for interval change . No pneumothorax .