A chronic, relapsing, multisystemic vasculitis characterized by mucocutaneous lesions, as well as articular, vascular, ocular and central nervous system manifestations. The disease is Monarch Disease Ontology entry MONDO_0007191 (Behcet disease). Also known as: Adamantiades-Behcet disease, Bechet syndrome, Behcet syndrome, Behcet's syndrome, Behet's syndrome, Behçet disease, Behçet syndrome, Behçet's syndrome.