Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , or pneumothorax is seen . Heart size is mildly enlarged , similar to prior . The aorta is calcified and tortuous . No pulmonary edema is detected . Focal narrowing of the proximal trachea is likely secondary to an enlarged thyroid gland , as seen on CT .
    OUTPUT:
    
Chronic mild cardiomegaly without evidence for acute change .