Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is opacity seen in the region of the lingula , corresponding to the consolidation seen on the prior chest CT . Given the patient 's symptoms and history of a lingular infiltrate , this most likely represents a residual area of cryptogenic organizing pneumonia . No additional foci of consolidation are noted . There is no pleural effusion , pneumothorax , or pulmonary edema . The heart size is normal . Mediastinal and hilar contours are stable .
    OUTPUT:
    
Lingular opacity likely representing a residual focus of cryptogenic organizing pneumonia . Recommend followup chest radiograph in ___ months following treatment to document resolution .