What are the differences between true aneurysms and pseudoaneurysms?

The difference between true aneurysm and pseudoaneurysm is different in etiology, structure and prognosis. The details are as follows:

1. The

main causes of true aneurysm are atherosclerosis, bacterial infection, arterial mid-layer cystic disease, etc.; while the main causes of pseudoaneurysm are giant cell arteritis, arterial wall injury, drug factors, etc.

2.

The structure of true aneurysm wall is composed of intima, media, adventitia, etc., while the wall structure of pseudoaneurysm is mainly formed by fibrous tissue.

3.

The prognosis of true aneurysm is different according to factors such as etiology, size and location of aneurysm. The prognosis is worse than pseudoaneurysm. As long as pseudoaneurysm is treated in time and regularly, the prognosis is generally good.