Table 3.

The International Study Group criteria for Behcet's Disease [16].

Recurrent oral ulceration	Minor or major aphthous, or herpetiform ulceration observed by physician or patient, which recurred at least 3 times in one 12-month period
Plus 2 of
Recurrent genital ulceration	Aphthous ulceration or scaring, observed by the physician or patient
Eye lesion	Anterior uveitis, posterior uveitis, or cells in vitreous on slit-lamp examination; or retinal vasculitis observed by an ophthalmologist
Skin lesions	Erythema nodosum observed by the physician or patient, pseudofolliculitis, or papulopustular lesions; acneiform nodules observed by the physician in postadolescent patients not on corticosteroid treatment
Positive pathergy test	Read by physician at 24–48 hours

(a) Findings applicable only in absence of other clinical explanations.