Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unchanged with slight tortuosity of the thoracic aorta again noted . Pulmonary vasculature is not engorged , and hilar contours are stable . Ill - defined opacities within the left upper and lower lobes are new in the interval and concerning for pneumonia . The right lung is clear . No pleural effusion or pneumothorax is demonstrated . Multiple compression deformities within the thoracic spine are relatively unchanged .
    OUTPUT:
    
New ill - defined opacities within the left upper and lower lobes concerning for multifocal pneumonia .