Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly with unfolding of the thoracic aorta is unchanged from the prior examination . Mediastinal contours are unchanged . Hilar contours are normal . Lungs remain hyperinflated . Posterior bibasilar densities correspond to Bochdalek 's hernia as on the prior CT examination . Pleural surfaces are clear without effusion or pneumothorax . Generalized demineralized appearance of the bones limits sensitivity for fracture . Within that context there is no overt traumatic finding . Cervical fixation hardware is visualized . The known T1 and T2 fractures are better evaluated on the cervical spine CT and are not well seen on radiograph . Cervical spinal fusion hardware is incompletely assessed .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No overt traumatic findings though diffuse osseous demineralization limits sensitivity for fracture detection .