Sillence syndrome

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Sillence syndrome

ORPHA:3168Malformation syndrome

What it is

A rare genetic syndrome with limb malformations as a major feature characterized by brachydactyly and distal symphalangism, pes cavus, scoliosis, and normal stature. There have been no further descriptions in the literature since 1978.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Infancy, Neonatal
Inheritance
Autosomal dominant
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

Q74.8filed under a broader ICD-10 category — shared with 24 other rare diseases

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.

Cross-references

GARD 4869MESH C537338MONDO 0007227OMIM 113450UMLS C1862092

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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