Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The study is performed on a trauma board . There is a dual lead pacemaker / ICD device with leads terminating in the right atrium and ventricle , respectively . The heart is mildly enlarged . The aortic arch is calcified . There is a convex contour to the right upper mediastinum , indeterminate , although most often seen with tortuosity of the great vessels . A band - like opacity in the left mid lung suggests minor atelectasis . There is also streaky bibasilar opacifications suggesting minor atelectasis with low lung volumes . There is no evidence for pleural effusion or pneumothorax . Prior vertebroplasties have been performed along the lower thoracic spine at two levels . The bones are probably demineralized . Surgical clips project over the right upper quadrant .
    OUTPUT:
    
No definite evidence of injury . Mild cardiomegaly . Convex contour to the right upper mediastinum , indeterminate , although most likely a normal variant ; however , correlation of planned CT is recommended .