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Start free with EleplanGenitopatellar syndrome
ORPHA:85201Malformation syndrome
Also called Absent patellae-scrotal hypoplasia-renal anomalies-facial dysmorphism-intellectual disability syndrome
What it is
A rare congenital patellar anomaly syndrome characterized by patellar aplasia or hypoplasia associated with microcephaly, characteristic coarse facial features (microcephaly, bitemporal narrowing, large, broad nose with high nasal bridge, prominent cheeks and micro/retrognathia or prognathism), arthrogryposis of the hips and knees, urogenital abnormalities and intellectual deficiency.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood
- Inheritance
- Autosomal dominant, Autosomal recessive
- 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
Very common80–99%
19- Arthrogryposis multiplex congenita
- Clitoral hypertrophy
- Coarse facial features
- Cryptorchidism
- Global developmental delay
- Hip contracture
- Hydronephrosis
- Hypoplastic ilia
- Hypoplastic ischia
- Intellectual disability
- Knee flexion contracture
- Microcephaly
- Multicystic kidney dysplasia
- Patellar aplasia
- Prominent nasal bridge
- Prominent nose
- Short palm
- Small scrotum
- Wide nose
Common30–79%
11These 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.
Gene
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.
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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