Trichorhinophalangeal Syndrome Type III
National Organization for Rare Disorders, Inc.
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Trichorhinophalangeal syndrome type III (TRPS3), also known as Sugio-Kajii syndrome, is an extremely rare inherited multisystem disorder. TRPS3 is characterized by fine, thin light-colored hair; unusual facial features; abnormalities of the fingers and/or toes; and multiple abnormalities of the "growing ends" (epiphyses) of the bones (skeletal dysplasia), especially in the hands and feet. Characteristic facial features may include a pear-shaped or rounded (bulbous) nose; an abnormally long prominent groove (philtrum) in the upper lip; and/or abnormalities such as delayed eruption of teeth. In addition, affected individuals also exhibit severe shortening of the fingers and toes (brachydactyly) due to improper development of bones in the hands and feet (metacarpophalangeal shortening). Additional features often include short stature (dwarfism) and/or additional skeletal abnormalities. The range and severity of symptoms may vary from case to case. TRPS3 is thought to have autosomal dominant inheritance.
Human Growth Foundation
997 Glen Cove Avenue
Glen Head, NY 11545
March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains, NY 10605
Little People of America, Inc.
250 El Camino Real
Tustin, CA 92780
NIH/National Arthritis and Musculoskeletal and Skin Diseases Information Clearinghouse
1 AMS Circle
Bethesda, MD 20892-3675
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Trichorhinophalangeal Syndrome Association (TRPSA)
6585 Dawn Way East
Inver Grove Heights, MN 55076
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