Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy . Heart size is mildly enlarged . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . Streaky left basilar opacity likely reflects left lower lobe atelectasis . Right lung is clear . No pleural effusion or pneumothorax is seen . Cervical spinal fusion hardware is re - demonstrated , partially imaged .
    OUTPUT:
    
Streaky left basilar opacity , likely reflective of left lower lobe atelectasis . Early infection is not excluded in the correct setting .