<prompt> Which one of the following does NOT present with a large anterior fontanelle?Crouzon syndromeHypophosphatasiaAchondroplasiaCongenital rubella syndrome  <response>: a. Crouzon syndromeRef: Nelsons 20e p 2817Crouzon syndrome is a cause of craniosynostosis premature fusion of sutures, so the fontanelle are small close early. 