Sagittal craniosynostosis — RACP Paediatrics MCQ

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ModerateNeurologySagittal craniosynostosisRACP Paediatrics

A 4-month-old has an elongated narrow skull (scaphocephaly). The sagittal suture is palpably ridged. Head circumference is on the 50th centile. Development is normal. What is the most likely diagnosis?

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Correct answer: E — Craniosynostosis – sagittal

Scaphocephaly (long narrow skull) with a ridged/palpable sagittal suture is sagittal craniosynostosis – the most common single-suture synostosis. It is usually isolated and non-syndromic. Surgical correction (strip craniectomy or cranial vault remodelling) is typically performed at 3-6 months for optimal cosmetic outcome.

Reference: RCH Melbourne – 2023 – Craniosynostosis CPG; RACP Paediatric Curriculum – Neurosurgery