Ankylosing spondylitis in two Zaïrian brothers.

Ankylosing spondylitis has never been described in Zaïre and is considered to be rare in black African populations. We report two cases observed in the University Hospital of Kinshasa. The two patients are brothers. The diagnosis is based on anaemnestic, clinical and radiological findings. We therefore demonstrate the existence of this disease in Zaïre and presume that other similar cases may be diagnosed.