<unk>  is a rare X-linked syndrome like intellectual disability. It may be caused by a small X-chromosome deletion. The condition can be detected around infancy.
Van Den Bosch syndrome
Helsmoortel-Van der Aa syndrome
Van Wyk and Grumbach syndrome
Van der Woude syndrome
Degos disease
Cruveilhier–Baumgarten disease
Koolen–De Vries syndrome
Pogosta disease