Trichodermodysplasia-dental alterations syndrome

What it is

Trichodermodysplasia-dental alterations syndrome is a rare, genetic ectodermal dysplasia syndrome characterized by sparse, thin, brittle scalp hair, as well as sparse eyebrows, eyelashes, axillary and pubic hair, delayed eruption of deciduous teeth and hypodontia of both dentitions. Mild palmoplantar keratosis, café-au-lait spots on back, mild dystrophy of nails, and tibial deflection of toes are also associated. There have been no further descriptions in the literature since 1986.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Neonatal

Classified as

Malformation syndrome

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references