Clinical and radiographic features. A. Face of patient II-1. B. Face of patient II-3. C. Palate of patient II-1. D. Hands of patient II-3. E-J. Skeletal radiographs of Patient II-1 showing the left humerus (E), left forearm (F), left hand (G), pelvis (H), left femur (I) and left lower leg (J). Note the gracile bones and undermineralization as well as the healing humeral fracture (E).