We describe the neuroimaging findings of an 11-year-old boy who presented with mild occipital headache and precocious puberty. This child was found to have a combination of various midline anomalies including a Chiari type 1 malformation, corpus callosum agenesis and patent craniopharyngeal canal with adjacent intracranial dermoid cyst.
PorettiABoltshauserEHuismanTA. Chiari malformations and syringohydromyelia in children. Semin Ultrasound CT MRI2016; 37: 129–142.
2.
GalarzaMMartínez-LageJFHamS. Cerebral anomalies and Chiari type 1 malformation. Pediatr Neurosurg2010; 46: 442–449.
3.
MilhoratTHChouMWTrinidadEM. Chiari I malformation redefined: Clinical and radiographic findings for 364 symptomatic patients. Neurosurgery1999; 44: 1005–1017.
4.
NishikawaMSakamotoHHakubaA. Pathogenesis of Chiari malformation: A morphometric study of the posterior fossa. J Neurosurg1997; 86: 40–47.
5.
LoukasMShayotaBJOelhafenK. Associated disorders of Chiari I malformations: A review. Neurosurg Focus2011; 31: E3.
6.
RakicPYakovlevPI. Development of the corpus callosum and cavum septi in man. J Comp Neurol1968; 132: 45–72.
7.
EdwardsTJSherrEHBarkovichAJ. Clinical, genetic and imaging findings identify new causes for corpus callosum development syndromes. Brain2014; 137: 1579–1613.
8.
RaybaudC. The corpus callosum, the other great forebrain commissures, and the septum pellucidum: Anatomy, development, and malformation. Neuroradiology2010; 52: 447–477.
9.
AbeleTASalzmanKLHarnsbergerHR. Craniopharyngeal canal and its spectrum of pathology. AJNR Am J Neuroradiol2014; 35: 772–777.
10.
NemzekWRBrodieHAHechtST. MR, CT, and plain film imaging of the developing skull base in fetal specimens. AJNR Am J Neuroradiol2000; 21: 1699–1706.
11.
KjaerIFischer-HansenB. Human fetal pituitary gland and holoprosencephaly and anencephaly. J Craniofac Genet Dev Biol1995; 15: 222–229.
12.
CurrarinoGMaravillaKRSalyerKE. Transsphenoidal canal (large craniopharyngeal canal) and its pathologic implications. AJNR Am J Neuroradiol1985; 6: 39–43.
13.
Mehemed TM, Fushimi Y, Okada T, et al. MR imaging of the pituitary gland and postsphenoid ossification in fetal specimens. AJNR Am J Neuroradiol. Epub ahead of print 28 April 2016. DOI: 10.3174/ajnr.A4808.
14.
SenerRN. Chiari I malformation associated with callosal dysgenesis and ectopic neurohypophysis. Comput Med Imaging Graph1995; 19: 487–489.