Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Patchy ill - defined opacities are demonstrated in both lung bases concerning for multifocal pneumonia . No pneumothorax or pleural effusion is identified . No acute osseous abnormalities detected .
    OUTPUT:
    
Patchy ill - defined opacities in both lung bases concerning for multifocal pneumonia . Followup radiographs after treatment are recommended to ensure resolution of these findings .