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Start free with EleplanNon-syndromic bilambdoid craniosynostosis
ORPHA:620178Morphological anomaly
Also called Isolated bilambdoid craniosynostosis · Isolated pachycephaly · Non-syndromic bilateral lambdoid synostosis
What it is
A form of non-syndromic multisutural craniosynostosis characterized by bilateral premature fusion of the lambdoid sutures, resulting in flattening and widening of the entire occipital region, with compensatory bossing of the vertex region (giving the cranium an elongated shape), and anterior-posterior displacement of the ears.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Neonatal
- Inheritance
- Autosomal recessive
- Classified as
- Morphological anomaly
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.
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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