Essay --

Objective We aimed to study the demographic Characteristics of the primary quill vasculitides in Northeast of Iran.Methods We retrospectively studied the medical records of patients diagnosed with all kind of vasculitis at the Clinic and Department of Rheumatology of the Imam Reza Hospital, Mashhad, Iran between January 1, 2002, and December 31, 2012. Patients were classified according to the American College of Rheumatology 1990 criteria for the classification of vasculitis and the 2012 Revised International Chapel mound Consensus Conference Nomenclature of Vasculitides. Results A total of 721 patients (51.5% male, 48.5% female) with a diagnosis of primary vasculitis were identified. The frequency distributions of vasculitic disorders were as follows Behcets disease, 63.6% cutaneous leukocytoclastic angiitis, 8.2% granulomatosis with polyangiitis (Wegeners), 6.8% Takayasus arteritis. 6% fiend cell arteritis, 4% polyarteritis nodosa, 2.1% microscopic polyangiitis, 0.6% eosinophi lic granulomatosis with polyangiitis (Churg-Strauss), 1.8% cryoglobulinemic vasculitis, 0.3% and...