Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . There is no pulmonary edema . Minimal atelectasis is seen in the left lung base . No focal consolidation , pleural effusion or pneumothorax is present . Cervical spinal fusion hardware is incompletely imaged .
    OUTPUT:
    
No definite radiographic evidence for pneumonia .