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Start free with EleplanAnkylosing vertebral hyperostosis with tylosis
ORPHA:2206Malformation syndrome
What it is
A rare dysostosis with predominant vertebral involvement characterized by paraspinal ligament ossification (most pronounced in the lower thoracic region), osteophytosis, marginal sacroiliac joint sclerosis, and punctate hyperkeratosis on the soles and palms. Patients may be asymptomatic or present mild to moderate back pain. There have been no further descriptions in the literature since 1969.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Adult
- 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
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
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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