Urological manifestations and treatment of the primary systemic vasculitides

Table 3 International Study Group Criteria for Behçets disease[153]

Required criteria
Recurrent oral ulceration (obligatory)	Minor aphthous, major aphthous, or herpetiform ulceration (observed by physician or patient); recurring at least 3 times in a 12 mo period
Plus 2 of
Recurrent genital ulceration	Aphthous ulceration or scarring (observed by physician or patient)
Eye lesions	Anterior uveitis, posterior uveitis, or cells in vitreous on slit lamp examination; or retinal vasculitis observed by ophthalmologist
Skin lesions	Erythema nodosum (observed by physician or patient), pseudofolliculitis, or papulopustular lesions; or acneiform nodules (observed by physician) in post-adolescent patients not on corticosteroid treatment
Positive Pathergy test	Read by physician at 24-48 h