Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Focal patchy opacity within the right lung base , likely within the right lower lobe , is concerning for pneumonia . The left lung is clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Patchy right basilar opacity , likely within the right lower lobe , is concerning for pneumonia . Followup radiographs after treatment are recommended to ensure resolution of this finding .