Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate no intrathoracic mass to explain the patient 's Horner 's syndrome . The lungs are clear . There is no pleural effusion , pneumothorax or focal airspace consolidation . The cardiac and mediastinal contours are normal . There are no osseous abnormalities .
    OUTPUT:
    
Normal Chest radiograph . No intrathoracic mass .