Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An apparent opacity overlying the left hemi thorax is due to a large hiatal hernia identified on the CT abdomen pelvis of the same date . There is no focal consolidation , pleural effusion , or pneumothorax . Bibasilar atelectasis is mild . The heart is mildly enlarged . Evaluation of the chest cage after trauma is not optimal on CT , but there are no apparent osseous abnormalities .
    OUTPUT:
    
1 . Suboptimal evaluation of the chest cage after trauma . However , within this limitation , no apparent osseous abnormalities . 2 . No focal consolidation , effusion , or pneumothorax . 3 . Please refer to the dedicated CT abdomen and pelvis report of the same date for further findings .