Inflated aorta root.

It’s a little unclear exactly what you’re asking, but I’ll do my best to help. “Dilated” simply means the aortic root is larger than normal. “Aneurysm” generally means that the enlargement has reached the point where doctors classify it as more significant—but the two are usually different points along the same spectrum, not two entirely different conditions.

The terminology can vary, so the important things are the actual measurement, whether it is growing, and factors such as your body size, valve anatomy, and family history. I would ask your cardiologist what your measurement is, how it compares with prior scans, and when it should be checked again. As someone who has lived through an aortic dissection and two open-heart surgeries, I know these words can sound terrifying, but many enlarged aortic roots remain stable for years with good blood-pressure control and regular monitoring. Peace.