Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No large amount of free air ___ ___'s sign in this supine film . Low lung volumes bilaterally . Progression of left and right lower lobe plate - like atelectasis with elevation of right hemidiaphragm . No pleural effusion , pneumothorax , ___ pulmonary edema . Heart and mediastinal contours are unchanged . No bony abnormality is detected .
    OUTPUT:
    
1 . No radiographic evidence of large abdominal free air . If clinical concern , may consider CT for further characterization . 2 . Right lower lobe atelectasis , progressed from ___ .