Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bilateral low lung volume with associated bronchovascular crowding . There is patchy left lower lung opacification concerning for pneumonia . There is no pleural effusion or pneumothorax . The aorta is stably tortuous . The cardiac and hilar silhouettes are within normal limits . The pleural surfaces are unremarkable .
    OUTPUT:
    
Left lower lung zone opacity consistent with pneumonia .