Plantar ganglion cyst associated with stress fracture of the third metatarsal.

Ganglion cysts of the foot and ankle occur relatively infrequently. Metatarsal stress fractures occur in a variety of athletes who subject their lower extremities to repetitive loading. In this article, we report the case of a professional football player with a plantar forefoot ganglion cyst associated with a stress fracture of the third metatarsal. After the cyst resolved with aspiration, the stress fracture healed with conservative, nonsurgical treatment.