Osteochondritis dissecans of the scaphoid: Preiser's disease?

Osteochondritis dissecans is a condition affecting a joint in which a variably sized wedge of subchondral bone and its overlying cartilage dies and becomes detached from the articular surface. Although it occurs most often in the knee joint of young male athletes, other reported sites of involvement include the patella, the capitellum, the talar dome, and the femoral head.I In contrast, the occurrence of avascular necrosis (AVN), the death of ~all or part of bone, has been reported at many joint sites. Several authors have described AVN of the scaphoid, or Preiser’s disease. 2-7