(Chapter 1) Footnote 6:

With few exceptions, sesamoid nodules are found in the tendons of two muscles of the hand, m. adductor pollicis and m. flexor pollicis brevis, and in the two tendons of m. flexor hallucis brevis. The largest articular sesamoid bone is the patella, found in the tendon of m. quadriceps femoris. Non-articular sesamoid bones or cartilages are also found in other muscles of the lower limb.