An intratendinous epidermoid cyst after trauma.

A 55-year-old man with an enlarging mass in the proximal segment of a finger, which had been previously traumatized, had removal of a large epidermoid cyst embedded in the fascicles of a repaired flexor digitorum profundus tendon. This represents the fourth case presented in the English-language literature of intratendinous inclusion cyst, and the only case associated with traumatic tendon damage.