Non-syndromic bilambdoid and sagittal craniosynostosis

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Non-syndromic bilambdoid and sagittal craniosynostosis

Synonyms: BLSS | Bilateral lambdoid and sagittal synostosis | Isolated sagittal and bilambdoid craniosynostosis | Non-syndromic sagittal and bilateral lambdoid synostosis

A rare cranial malformation syndrome characterized by the premature closure of both lambdoid sutures and the posterior sagittal suture resulting in abnormal skull contour (frontal bossing anterior turricephaly with mild brachycephaly biparietal narrowing occipital concavity) and dysmorphic facial features (low-set ears midfacial hypoplasia). Short stature developmental delay epilepsy and oculomotor dyspraxia have also been reported. Associated anomalies include enlargement of the cerebral ventricles agenesis of the corpus callosum Arnold-Chiari malformation type I venous anomalies of skull and hydrocephalus.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version May 2024

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