Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Superior mediastinum and right apex are somewhat obscured by the patient 's chin projecting over this region . Cardiac , mediastinal and hilar contours are unchanged with the heart size within normal limits . The pulmonary vasculature is not engorged . Apart from minimal atelectasis in the lung bases , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Posterior spinal fusion hardware is noted at the cervicothoracic junction .
    OUTPUT:
    
No acute cardiopulmonary abnormality .