PREVIEW
Systemic vasculitis can be difficult to recognize because of the many types of the disease and the conditions that can mimic it. However, early identification and initiation of treatment (often empirical) are important to avoid severe morbidity. In this symposium article, Dr Bush clearly describes the most common types of vasculitis according to current nomenclature based on the size of affected vessels. Illustrations of common signs of the various types of vasculitis are also included.