Behçet disease

**Definition:** Behçet disease is a disease of incompletely understood aetiopathogenesis characterised by recurrent oral and/or genital aphthous ulcers accompanied by cutaneous, ocular, articular, gastrointestinal, and/or central nervous system inflammatory lesions. Small vessel vasculitis, thrombotic vasculopathy, arteritis and arterial aneurysms may occur. It has a high prevalence from the Eastern Mediterranean across Central Asia to China and Japan.

**Long definition:** Vasculitis occurring in patients with Behçet's disease that can affect arteries or veins. Behçet's disease is characterized by recurrent oral and/or genital aphthous ulcers accompanied by cutaneous, ocular, articular, gastrointestinal, and/or central nervous system inflammatory lesions. Small vessel vasculitis, thromboangiitis, thrombosis, arteritis and arterial aneurysms may occur.

**Inclusions:** - Adamantiades-Behçet disease