Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vascularity is normal . Approximately 2 cm focal opacity within the right lung base was not clearly identified on the prior study , and could reflect an area of infection , inflammation , or neoplasm . There is adjacent linear scarring . Left lung is clear . There is no pleural effusion or pneumothorax . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Nonspecific focal opacity within the right lung base could reflect an area of infection , inflammation , or neoplasm . Followup radiographs are recommended after treatment , and if this finding persists , then a dedicated chest CT is suggested .