Spondyloepimetaphyseal dysplasia

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Spondyloepimetaphyseal dysplasia, Maroteaux type

ORPHA:263482Disease

Also called Pseudo-Morquio syndrome type 2 · Pseudo-Morquio type II syndrome · SEMD, Maroteaux type · SEMD-M

What it is

Spondyloepiphyseal dysplasia, Maroteaux type is a very rare type of spondyloepiphyseal dysplasia described in fewer than 10 patients to date and characterized clinically by dysplastic epiphyses, short stature appearing in infancy, short neck, short and stubby hands and feet, scoliosis, genu valgum, abnormal pelvis, osteoporosis and osteoarthritis.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Infancy, Neonatal
Inheritance
Not applicable
Classified as
Disease

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.

Gene

TRPV4Disease-causing germline mutation(s)

ICD-10 codes

Q77.7filed under a broader ICD-10 category — shared with 47 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.

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

GARD 994MONDO 0008473OMIM 184095UMLS C3159322

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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