Fibular dimelia-diplopodia syndrome

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Fibular dimelia-diplopodia syndrome

ORPHA:1757Malformation syndrome

Also called Leg duplication-mirror foot syndrome

What it is

A very rare, genetic, congenital limb malformation syndrome characterized by duplication of the fibula associated with pre-axial mirror polydactyly of the foot, that may occur as an isolated malformation or be associated with other anomalies, including ulnar dimelia, facial abnormalities and sacrococcygeal teratoma.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Neonatal
Inheritance
Not applicable
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

MONDO 0015773UMLS C4303758

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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