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Case Reports
. 2006 Sep;36(9):977-9.
doi: 10.1007/s00247-006-0230-2. Epub 2006 Jun 8.

Partial absence of the posterior semicircular canal in Alagille syndrome: CT findings

Bernadette Koch  1 , Amy Goold, John Egelhoff, Corning Benton
Affiliations
Case Reports

Partial absence of the posterior semicircular canal in Alagille syndrome: CT findings

Bernadette Koch et al. Pediatr Radiol. 2006 Sep.

Abstract

We report a case of bilateral partial absence of the posterior semicircular canals (with normal lateral semicircular canals) imaged with CT in a patient with Alagille syndrome. Similar histologic findings have been reported in the pathology literature. This association has been previously reported only for Waardenburg syndrome in the imaging literature. We review the imaging findings and embryology of the semicircular canals, and suggest that this abnormality is specific to patients with Alagille or Waardenburg syndrome.

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