Pseudo-Behçet's disease associated with tuberculosis: a case report and review of the literature.

Orogenital ulcer is one of the clinical manifestations of Behçet's disease (BD). However, orogenital ulcer may be observed in various conditions, such as complex aphthous dermatitis and herpes simplex virus infections. Therefore, orogenital ulcer along with skin lesions, including acne or erythema nodosum, may be misdiagnosed as BD, but is actually pseudo-BD instead. We report here a case of pseudo-BD due to Mycobacterium tuberculosis infection in which anti-tuberculous treatment resulted in complete resolution. Furthermore, we review the literature regarding the association of BD and M. tuberculosis infection.