Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded with flattening of the hemidiaphragms , increased retrosternal clear space , and biapical hyperlucency . There is no focal consolidation , pleural effusion , or pneumothorax . Again seen is a large calcified thyroid goiter with retrosternal extension , resulting in compression and overall rightward deviation of the superior trachea at the level of the thoracic inlet . Mild cardiomegaly persists , with a tortuous and calcified aorta . There are multiple old healed right - sided rib fractures .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Mild cardiomegaly . 3 . Large mediastinal thyroid goiter .