Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged , with the heart size within normal limits . Again demonstrated is widening of the superior mediastinum compatible with an enlarged thyroid goiter , which was previously assessed on a thyroid ultrasound from ___ . The pulmonary vascularity is normal . The lungs are clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process . Thyroid goiter .