Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging findings in a patient with cochlear otosclerosis

Makoto Sugiura; Shinji Naganawa; Michihiko Sone; Tadao Yoshida; Tsutomu Nakashima

doi:10.1016/j.anl.2007.04.004

Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging findings in a patient with cochlear otosclerosis

Auris Nasus Larynx. 2008 Jun;35(2):269-72. doi: 10.1016/j.anl.2007.04.004. Epub 2007 Sep 5.

Authors

Makoto Sugiura¹, Shinji Naganawa, Michihiko Sone, Tadao Yoshida, Tsutomu Nakashima

Affiliation

¹ Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan. makotos@med.nagoya-u.ac.jp

PMID: 17804186
DOI: 10.1016/j.anl.2007.04.004

Abstract

A 51-year-old man had progressive hearing loss over more than 15 years. He had bilateral sensorineural hearing loss (SNHL). Computed tomography (CT) showed extensive bilateral demineralization of the cochlear capsule, which is characteristic of diffuse cochlear otosclerosis. Three-dimensional fluid-attenuated inversion recovery (3D-FLAIR) of magnetic resonance imaging before enhancement revealed high signals in the cochlea and vestibule. Postcontrast 3D-FLAIR revealed enhancement of the basal turn of the left cochlea. This is the first published case of the breakdown of the blood-labyrinth barrier in a patient with cochlear otosclerosis. Our findings suggest that the breakdown of the blood-labyrinth barrier is associated with a part of SNHL in cochlear otosclerosis.

Publication types

Case Reports
Research Support, Non-U.S. Gov't

MeSH terms

Cochlea
Humans
Imaging, Three-Dimensional
Magnetic Resonance Imaging / methods*
Male
Middle Aged
Otosclerosis / diagnosis*