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OBJECTIVE: Crouzon syndrome with acanthosis nigricans (CAN) is a rare and clinically complex subtype of Crouzon syndrome. At three craniofacial centers, this multicenter study was undertaken to assess clinical signs in relation to the required interventions and treatment course in patients with CAN. METHODS: A retrospective cohort study of CAN was performed to obtain information about the clinical treatment course of these patients. Three centers participated: Erasmus Medical Centre, Rotterdam, the Netherlands; John Radcliffe Hospital, Oxford, United Kingdom; and Hôpital Necker-Enfants Malades, Paris, France. RESULTS: Nineteen patients (5 males, 14 females) were included in the study. All children were operated on, with a mean of 2.2 surgeries per patient (range 1-6). Overall, the following procedures were performed: 23 vault expansions, 10 monobloc corrections, 6 midface surgeries, 11 foramen magnum decompressions, 29 CSF-diverting surgeries, 23 shunt-related interventions, and 6 endoscopic third ventriculostomies, 3 of which subsequently required a shunt. CONCLUSIONS: This study demonstrates that patients with the mutation c.1172C>A (p.Ala391Glu) in the FGFR3 gene have a severe disease trajectory, requiring multiple surgical procedures. The timing and order of interventions have changed among patients and centers. It was not possible to differentiate the effect of a more severe clinical presentation from the effect of treatment order on outcome.

Original publication




Journal article


J Neurosurg Pediatr

Publication Date



1 - 7


Crouzon syndrome with acanthosis nigricans, FGFR3, craniofacial, craniosynostosis