Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is borderline enlarged . The mediastinal and hilar contours are unremarkable . Patchy and somewhat nodular opacities within the right lung base and right mid lung field , likely involving the upper lobe , are concerning for infection . No pulmonary edema is clearly noted . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patchy opacities within the right lung are concerning for areas of pneumonia . Followup radiographs after treatment are recommended to ensure resolution of these findings .