ABSTRACT: Crouzon syndrome is a known craniosynostosis syndrome with a heterogenous presentation. Suture closure can rapidly develop postnatally and involve multiple sutures, requiring vigilant clinical monitoring to prevent delay in diagnosis and developing intracranial hypertension. The authors present the case of a male patient with Crouzon syndrome who developed postnatal pansynostosis at 18 months of age when several missed appointments led to diagnosis after complete closure of all sutures and signs of elevated intracranial pressure. Posterior cranial vault distraction was performed soon after, and the patient improved clinically. There is a need for improved monitoring and management of these patients to prevent delay in diagnosis and potential permanent sequelae as well as minimizing radiation exposure through watchful CT scanning.
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