Narrow duplicated internal auditory canal: radiological findings and review of the literature

Demir O., Cakmakci H., Erdag T., Men S.

PEDIATRIC RADIOLOGY, cilt.35, sa.12, ss.1220-1223, 2005 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 35 Sayı: 12
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s00247-005-1547-y
  • Dergi Adı: PEDIATRIC RADIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1220-1223
  • Anahtar Kelimeler: narrow duplicated internal auditory canal, CT, MRI, child
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

Narrow duplicated internal auditory canal (IAC) is a rare malformation of the temporal bone that is associated with ipsilateral congenital sensorineural hearing loss. This may be an isolated finding or a part of a syndrome. Radiological examination should demonstrate aplasia or hypoplasia of the neural components of the narrow IAC, to guide the surgical approach. We report a 7-year-old boy with Klippel-Feil syndrome with a narrow double IAC with no sensorineural hearing loss but with conductive hearing loss. In this patient, the IAC consisted of two separate narrow bony canals clearly seen on 3D temporal bone CT and one nerve that was delineated on MRI. The contralateral external auditory canal was stenotic and the ossicles were dysplastic.