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Start free with EleplanPelvis-shoulder dysplasia
ORPHA:2839Malformation syndrome
Also called Kosenow syndrome · Scapuloiliac dysostosis
What it is
A rare dysostosis characterized by symmetrical hypoplasia of the scapulae and the iliac wings of the pelvis. Additional skeletal abnormalities may include hypoplasia of the clavicles, phalanges, ribs, femora and fibula, spina bifida, prominent lumbar lordosis, camptodactyly and clubbed feet. Eye anomalies (coloboma of iris and retina) have occasionally been reported. Patients do not exhibit craniocervical abnormalities.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Infancy, Neonatal
- 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
Common30–79%
40- Abnormal form of the vertebral bodies
- Abnormal pinna morphology
- Absent proximal finger flexion creases
- Acetabular dysplasia
- Ambiguous genitalia
- Aplasia/Hypoplasia of the clavicles
- Aplasia/hypoplasia of the femur
- Aplasia/Hypoplasia of the fibula
- Aplasia/Hypoplasia of the ribs
- Aplasia/Hypoplasia of the scapulae
- Bell-shaped thorax
- Bilateral microphthalmos
- Camptodactyly of finger
- Cleft palate
- Dislocated radial head
- Facial hirsutism
- Fifth finger distal phalanx clinodactyly
- Hydranencephaly
- Hydrocephalus
- Hydronephrosis
- Hypoplastic ischia
- Hypoplastic pubic bone
- Iris coloboma
- Long clavicles
- Lumbar hyperlordosis
- Mesomelic/rhizomelic limb shortening
- Microcornea
- Microglossia
- Micrognathia
- Microtia
- Neonatal short-trunk short stature
- Prominent protruding coccyx
- Retinal coloboma
- Short palpebral fissure
- Short stature
- Spina bifida
- Syndactyly
- Talipes equinovarus
- Thick anterior alveolar ridges
- Waddling gait
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.
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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