Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal cardiomediastinal silhouette . A patchy opacity in the left lower lobe is concerning for pneumonia in the appropriate clinical setting although atelectasis could also be considered , particularly noting it s steaky character . The lungs appear otherwise clear . There is no pneumothorax , vascular congestion , or pleural effusion .
    OUTPUT:
    
Vague opacity in the left lower lobe concerning for pneumonia .