Three main points in diagnosing<unk>  are: width of the first web space, instability of the involved joints and function of the<unk> . Thorough physical examination together with anatomic verification at operation reveals all the anomalies. An X-ray of the hand and<unk>  in two directions is always mandatory. When the pediatrician thinks the condition is associated with some kind of syndrome other tests will be done. More subtle manifestations of types I and II may not be recognized, especially when more obvious manifestations of longitudinal radial deficiency in the opposite extremity are present. Therefore, a careful examination of both hands is important.
Thumb hypoplasia
Maxillary hypoplasia
Renal hypoplasia
Condylar hypoplasia
Radial aplasia
Hemifacial microsomia
Webbed neck
Ape hand deformity