Pathergy test is used for ?
High-Yield Explanation
Ans. is 'b' i.e., Bechet's syndrome Criteria for diagnosis of Bechet's disease Recurrent oral ulcer for at least 3 times in 12 months. Plus any two of the followings :? Recurrent genital ulcer. Eye inflammation with loss of vision. Characterstic skin lesion (erythema nodosum). Positive pathergy test (skin prick test).