Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vascularity is normal . Linear opacity in the left lung base likely reflects atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . Anterior bridging osteophytes are noted in the thoracic spine . Cervical spinal fusion hardware is re - demonstrated within the lower cervical spine .
    OUTPUT:
    
No acute cardiopulmonary process .