Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . The aorta is unfolded . Bilateral enlargement of the superior mediastinal contour is compatible with a thyroid goiter , unchanged . Pulmonary vasculature is normal . There is mild elevation of the right hemidiaphragm which is unchanged , with associated right basilar linear atelectasis . No focal consolidation , pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .