Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs are provided . There is a patchy opacity in the left lower lobe on both the frontal and lateral views , new since the prior radiograph and consistent with pneumonia . The right lung is predominantly clear . There is no pneumothorax or pleural effusion . The cardiomediastinal silhouette is unchanged . Again seen are compression fractures of T4 and L1 , unchanged .
    OUTPUT:
    
New left lower lobe pneumonia .