Vasculitis – Wikipedia

Vasculitis is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. Vasculitis is primarily caused by leukocyte migration and resultant damage.. Although both occur in vasculitis, inflammation of veins or arteries on their own are separate entities.

https://en.wikipedia.org/wiki/Vasculitis