Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , a subtle left lower lobe opacity has improved and likely represents a resolving pneumonia . The scarring in the right middle and left upper lobes is unchanged and fully assessed on CT scan from ___ . The cardiomediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . Two sclerotic thoracic vertebral bodies , one with a compression deformity are unchanged .
    OUTPUT:
    
Improved appearance of left lower lobe opacity , which likely represents a resolving pneumonia . Otherwise , stable chest radiograph .