Ankylosing spondylitis-chorean epileptic disease (BCED) is a rare neurological disease characterized by a combination of syphilitic endarteritis with the spread of the pathogen along the nerve fibers of the sacral spinal cord with the formation of bone spurs. The severity of the disease is characterized by damage to the pelvis, mental disorders, muscular dystonia, choreoathetosis and epilepsy. This disease is associated with the presence of an infectious lesion of the brain and is associated with congenital developmental abnormalities.
Disease statistics indicate that the disease can be diagnosed in patients of any age. The main peak incidence in girls is observed at 14 years of age, and in boys at 9 years of age. Approximately 75% of patients experience choreoathetosis