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Title: Malformations of the middle and inner ear on CT imaging in 22q11 deletion syndrome
Authors: Loos, Elke ×
Verhaert, Nicolas
Willaert, Annelore
Devriendt, Koenraad
Swillen, Ann
Hermans, Bob
Op de beeck, Katya
Hens, Greet #
Issue Date: Nov-2016
Publisher: Wiley-Liss
Series Title: American Journal of Medical Genetics A vol:170 issue:11
Article number: 10.1002/ajmg.a.37872
Abstract: The 22q11 deletion syndrome (22q11DS), the most frequent microdeletion syndrome in humans, presents with a large variety of abnormalities. A common abnormality is hearing impairment. The exact pathophysiological explanation of the observed hearing loss remains largely unknown. The aim of this study was to analyze the middle and inner ear malformations as seen on computer tomographic imaging in patients with 22q11DS. We retrospectively reviewed the charts of 11 22q11DS patients who had undergone a CT of the temporal bone in the past. Of the 22 examined ears, two showed an abnormal malleus and incus, 10 presented with a dense stapes superstructure, and three ears had an abnormal orientation of the stapes. With regard to the inner ear, 12 ears showed an incomplete partition type II with a normal vestibular aqueduct. In four ears the vestibule and lateral semicircular canal were composed of a single cavity, in 14 ears the vestibule was too wide, and three ears had a broadened lateral semicircular canal. These findings suggest that malformations of the stapes, cochlea, vestibule, and lateral semicircular canal are frequent in 22q11DS. To our knowledge, the current study involves the largest case series describing middle and inner ear malformations in 22q11DS. © 2016 Wiley Periodicals, Inc.
URI: 
ISSN: 1552-4825
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Radiology
Department of Human Genetics - miscellaneous
Studiegebied Gezondheidszorg - VIVES Noord
Research Group Experimental Oto-rhino-laryngology
× corresponding author
# (joint) last author

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