Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is asymmetric new opacification of the left mid to upper lung on the anterior view ; on the lateral opacity more striking is new opacity in the left lower lobe . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings suggesting areas of pneumonia in the left lung .