J Clin Neurol.  2016 Jan;12(1):119-120. 10.3988/jcn.2016.12.1.119.

Aplasia of the Internal Carotid Artery with Dandy-Walker Variant

  • 1Department of Neurosurgery, Peking University Shenzhen Hospital, Futian District Shenzhen Guangdong, P.R.China.
  • 2School of Medical Technology and Nursing, Shenzhen Polytechnic, Xili Lake, Nanshan District, Shenzhen, Guangdong Province, P.R.China. hanzl007@163.com


No abstract available.

MeSH Terms

Carotid Artery, Internal*
Dandy-Walker Syndrome*


  • Fig. 1 Aplasia of the internal carotid artery (ICA) with Dandy-Walker variant. A: T1-weighted sagittal magnetic resonance imaging (MRI) showing a hypoplastic cerebellar vermis (long white arrow). B: T2-weighted axial MRI revealing a paraclinoidal aneurysmal appearance (short white arrow). C: Computed tomography (CT) scan showing a large posterior fossa cyst and thinning of the occipital bone. D: CT scan disclosing a pneumatized canal (asterisk). E: Right carotid arteriography revealing absence of the ICA. F: Three-dimensional image revealing that the anterior circulation is supplied by the posterior circulation (the white arrow indicates the aneurysmal appearance).


1. Florio F, Balzano S, Nardella M, Strizzi V, Cammisa M, Bozzini V, et al. Congenital absence of the internal carotid artery. Cardiovasc Intervent Radiol. 1999; 22:74–78.
2. Altman NR, Naidich TP, Braffman BH. Posterior fossa malformations. AJNR Am J Neuroradiol. 1992; 13:691–724.
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