Ganglion cyst arising from the first metacarpophalangeal joint in an adolescent

Pediatric ganglion cyst of the hand is a rare entity. Its incidence is even lower in those arising from the metacarpophalangeal [MP] joint. We herein report the first known case of a ganglion cyst of the first MP joint in a 14-year-old boy. Pathogenesis, diagnosis and treatment are discussed