Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains top normal . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Subsegmental atelectasis is noted in the left lower lobe without focal consolidation . Right lung is clear . No pleural effusion or pneumothorax is present . Cervical spinal fusion hardware is not completely assessed on this exam .
    OUTPUT:
    
Subsegmental left lower lobe atelectasis . Otherwise , no acute cardiopulmonary abnormality .