Difficult to detect and treat once the damage is done, carbon monoxide is known as the silent killer. This sneaky, toxic gas finds its way into your home through a wide range of seemingly harmless sources.
More Info... by email. wiseGEEK Slideshows. Inflammation of the small blood vessels of the body is known as leukocytoclastic vasculitis. This disorder causes damage to the blood vessels, leading to bleeding and sometimes damage to surrounding tissues.
Hypersensitivity Vasculitis (Leukocytoclastic) Hypersensitivity vasculitis (HV) is often used to describe different types of vasculitis related to drug reactions, skin disorders or allergic vasculitis; however this is not always the correct use of the term. The American College of Rheumatology established a list of criteria for the classification of HV.