Lymphangioleioma is a kind of misshapen tumor developed from primitive lymphatic vessels and is a benign tumor in human body. Lymphangioleioma and hemangioma itself are of the same origin, only that different differentiation occurs in the later stages of development. Lymphangiectasia is a kind of swelling caused by the development of some lymphatic vessels isolated from other lymphatic vessels in the system and their own development and proliferation, and the lymphatic fluid in them keeps increasing. This kind of lymphangiectasia is benign, and usually only the occupying effect will be harmful to the human body, and usually requires surgery to remove it.