Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The mediastinal contour is unremarkable . Pulmonary vasculature is not engorged . Left perihilar , lingular , and left lower lobe ill - defined nodular and patchy opacities are new in the interval concerning for pneumonia . Right lung is clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Multifocal left - sided pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .