Accessory carpal ossification centers, double calcaneal ossification center. Dislocation of large joints.
Flat facies. Clinical DD: Marfan syndrome, arthrogryposis, and Ehlers-Danlos syndrome.
Lateral and Medial Spurs of the Acetabulum (Trident Acetabulum) Acetabular Protrusio
Spurs are seen in skeletal dysplasias when the base of the iliac bone is small and the entire iliac bone is decreased in size. The spur is visible in neonates and young infants and disappears as the skeleton matures.