Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is upper limits of normal . The mediastinal and hilar contours are normal , with no evidence of lymphadenopathy to suggest sarcoidosis . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No radiographic evidence of intrathoracic lymph node enlargement to suggest sarcoidosis .