Latest information regarding the treatment as well as diagnosis of the disease of vasculitis has been illuminated in this profound book. Vasculitis is an inflammatory disease which affects the blood vessels. It can be idiopathic or secondary to other conditions. Infections may also resemble idiopathic vasculitis, and the differential diagnosis requires principal attention from the practicing physicians. Vasculitides are common diseases. Moreover, few vasculitides like ANCA-associated vasculitis, giant cell arteritis, and, cutaneous vasculitis are quite common in everyday practice. Vasculitis can result in failure of organs in patients and prove to be fatal. Hence, it should be diagnosed as soon as possible by physicians of varying specialties for a timely decision on appropriate treatment method. Lately, the field of pathophysiology and treatment of vasculitis has witnessed significant progress. This book exhibits novel advances in diagnosis, pathogenetic mechanisms, and treatment of distinct types of vasculitis. The international panel of authors offers the readers with a concise view on various aspects of vasculitis in this book.