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Start free with Eleplan46,XX difference of sex development-skeletal anomalies syndrome
ORPHA:2975Malformation syndrome
Also called 46,XX disorder of sex development-skeletal anomalies syndrome
What it is
A rare difference of sex development characterized by primary amenorrhea and ambiguous external genitalia (enlarged clitoris with marked fusion of the labioscrotal folds) in association with skeletal anomalies (such as hypoplasia of the mandibular condyles and the maxilla, and ulnar dislocation of the radial heads), in the presence of a 46,XX karyotype and regular ovaries, fallopian tubes, and uterus. There have been no further descriptions in the literature since 1972.
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.
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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