Bipartite Sesamoids

Sesamoid bones are found in association with tendons in the feet, as in the hands. They may be bipartite and simulate fractures, although when pain and local tenderness is present it is important to remember that a bipartite sesamoid is larger overall than a fractured non-partite sesamoid. 

There are typically two sesamoids located on the plantar aspect of the head of the first metatarsal. The medial sesamoid is usually larger than the lateral. On occasion it can he bipartite and should not be mistaken for fracture. 

---