Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left basilar opacity may be due to combination of prominent fat pad and atelectasis . There is no large effusion , consolidation or edema . Cardiac silhouette is mildly enlarged and there is tortuosity of the thoracic aorta . Posterior left seventh and eighth rib fractures are again noted . Upper and lower thoracic vertebral body compression fractures are less well seen on the current exam .
    OUTPUT:
    
Cardiomegaly without definite acute cardiopulmonary process .