Behçet Syndrome

Behçet Syndrome is a rare condition that causes inflammation in various parts of the body, especially the blood vessels. It mainly affects the skin, mouth, eyes, and genitals, leading to painful sores and ulcers. This disease can also cause problems in the joints, digestive system, and nervous system. The inflammation can lead to symptoms like recurrent mouth ulcers, eye redness and pain, and skin rashes. Because it affects blood vessels, it can sometimes cause serious complications like blood clots or vision loss. The exact cause is unknown, but it is thought to involve an abnormal immune response. It often occurs in young adults and is more common in people from the Middle East and Asia.

Behçet Syndrome is a chronic, multisystem inflammatory disorder characterized by vasculitis affecting both arteries and veins of all sizes. The pathogenesis involves an abnormal immune-mediated inflammatory response, possibly triggered by environmental factors in genetically predisposed individuals, with a strong association to HLA-B51. The hallmark clinical features include recurrent oral aphthous ulcers, genital ulcers, uveitis, and skin lesions such as erythema nodosum or acneiform eruptions. Systemic involvement can extend to the central nervous system, gastrointestinal tract, and vascular system, leading to serious complications like thrombosis and aneurysms. Diagnosis is clinical, based on characteristic symptoms and exclusion of other causes. The disease course is typically relapsing and remitting, with variable severity.