Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The hilum are slowly enlarging since ___ . Right paratracheal stripe has also thickened since previous exam . As shown on the CT of ___ , the patient had multiple enlarged central lymph nodes . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . The cardiac contour is mildly enlarged . Gastric band is seen .
    OUTPUT:
    
Slowly enlarging central lymph nodes since ___ is suggestive of sarcoid .