J Korean Radiol Soc.  1999 Jul;41(1):27-30. 10.3348/jkrs.1999.41.1.27.

Laryngeal Schwannoma: A Case Report

• Park JY
• Seo CH
• Lim SY
• Seong H
• Jang KJ
• Lee DG
• Lee CW

• KMID: 2200854
• DOI: http://doi.org/10.3348/jkrs.1999.41.1.27

Abstract

Laryngeal schwannoma is extremely rare. We report the CT and MRI findings of a case occurring in a 65-year-oldwoman, and describe the pathologic correlation. Pre-contrast CT scanning revealed a right supraglot-tic mass witha slightly hyperdense central part and a hypodense peripheral part. Post-contrast CT scanning re-vealed anenhanced hyperdense central part and a rim-like hypodense peripheral part. The density of the pe-ripheral part waslower than that of muscle. The mass showed homogeneous low signal intensity on T1-weighted MR images, homogeneoushigh signal intensity on T2-weighted MR images, and an enhanced high signal intensity central part and a lowsignal intensity peripheral part on gadolinium enhanced T1-weighted images. The enhanced central part correlatedwith Antoni A areas and the peripheral part, showing low attenuation, correlated with Antoni B areas.

Keyword

Larynx, CT; Larynx, MR; Larynx, neoplasms

MeSH Terms

Gadolinium
Magnetic Resonance Imaging
Neurilemmoma*
Tomography, X-Ray Computed
Gadolinium