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Syndrome reference sheet
Generated 12 Oct 2026
Orthopedics · Orthopedics / Skeletal dysplasia

Nail-patella syndrome

Also known as: Fong disease; Turner–Kieser syndrome

Nail dysplasia, absent patellae and nephropathy.

Medical specialty
Orthopedics
Subspecialty
Orthopedics / Skeletal dysplasia
Sex & age distribution
Male: affected; Female: affected, equal; Children: yes, congenital
Gene(s) involved
LMX1B

Etiology & mechanism

LMX1B transcription factor mutation.

Gene(s) involved (1)

LMX1B

Symptoms & signs (6)

absent or hypoplastic patellaeelbow dysplasiaglaucomailiac hornsnail dysplasianephropathy
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