This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Trichorhinophalangeal syndrome type 1 (TRPS1) is an extremely rare inherited multisystem disorder. TRPS1 is characterized by a distinctive facial appearance that includes sparse scalp hair; a rounded nose; a long, flat area between the nose and the upper lip (philtrum); and a thin upper lip. Individuals with this condition also have skeletal abnormalities such as cone-shaped epiphyses in their fingers and toes and short stature. The range and severity of symptoms may vary from case to case. Transmission of TRPS1 is autosomal dominant, linked to mutations in the TRPS1 gene localized to 8q24.12.
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