Table 1.

International Study Group criteria for the diagnosis of Behçet's disease [9].

Recurrent oral ulceration	Minor/major aphthous or herpetiform ulcer observed by the physician or patient which recurred at least three times in one 12-month period
Plus two of the following:
Recurrent genital ulceration	Aphthous ulcer or scarring observed by the physician or patient
Eye lesions	Anterior/posterior uveitis, cells in the vitreous on slit-lamp examination or retinal vasculitis observed by an ophthalmologist
Cutaneous lesions	Erythema nodosum observed by physician or patient, pseudofolliculitis or papulopustular lesions, or acneiform nodules observed by physician in postadolescent patients not receiving corticosteroids
Positive pathergy test	Interpreted by the physician at 24–48 h