Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2000 Feb;21(2):328–330.

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © American Society of Neuroradiology

PMC Copyright notice

FIG 1. — Images from the case of a 12-year-old female patient who presented at our institute with unilateral hearing impairment.

A, Abnormal left ear. Parasagittal 3DFT-CISS (12.3/5.9/1; flip angle, 70°) reconstruction images obtained perpendicular to the IAC at the midportion in the affected left side. The facial nerve is depicted in the superior and anterior position in the IAC (arrowhead). The common vestibular nerve is identified (thin arrow). A thin cochlear branch arises (arrow) from the VCN.

B, Abnormal left ear. Parasagittal 3DFT-CISS reconstruction images obtained perpendicular to the IAC at the lateral portion. The common vestibular nerve (not identified on this image) divides into the superior vestibular branch (thin arrow) and the inferior vestibular branch (short arrow) (poorly visualized). The cochlear branch is not visualized. The IAC seems to be slightly narrow compared with that on the right side (see panel D). The facial nerve is identified (arrowhead). The basal turn of the cochlea is shown (arrow). The vestibular branches also seem to be small in comparison with those on the right side (see panel D). Any vestibular abnormality, however, could be detected in the patient.

C, Normal right ear. Parasagittal 3DFT-CISS (12.3/5.9/1; flip angle, 70°) reconstruction images obtained perpendicular to the IAC at the midportion in the normal right side. The cochlear branch (arrow) is larger than the facial nerve (arrowhead). The common vestibular nerve is shown (thin arrow).

D, Normal right ear. Parasagittal 3DFT-CISS reconstruction images obtained perpendicular to the IAC at the lateral portion. The common vestibular nerve divides into the superior vestibular branch (thin arrow) and the inferior vestibular branch (short arrow). The cochlear branch (arrow) is larger than the facial nerve (arrowhead). Small arrowhead, the cochlea.