Trigonocephaly-short stature-developmental delay syndrome

What it is

A rare syndromic craniosynostosis characterized by trigonocephaly prominent metopic ridge, short stature, and developmental delay. Dysmorphic features may also include narrow forehead with bitemporal narrowing, arched eyebrows, deep-set eyes, epicanthal folds, hypotelorism, strabismus, wide nasal bridge, small pointed nose, anteverted nostrils, long philtrum, low-set ears, malar flattening, narrow mouth, thin lips, high-arched palate, crowded teeth, and micrognathia. Variable additional manifestations may include conductive hearing loss, cerebral (mainly involving the white matter), skeletal (including brachymesophalangy of the fifth fingers), cardiovascular and renal anomalies, inguinal hernia, hypospadias, and seizures. There have been no further descriptions in the literature since 1981.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

No data available

Inheritance

Unknown

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