J Korean Radiol Soc.  2005 Apr;52(4):251-254. 10.3348/jkrs.2005.52.4.251.

Giant Presacral Schwannoma: A Case Report

Affiliations
  • 1Department of Diagnostic Radiology, Soonchunhyang University, Cheonan Hospital, Korea. khcppp@lycos.co.kr
  • 2Department of Pathology, Soonchunhyang University, Cheonan Hospital, Korea.
  • 3Department of Diagnostic Radiology, Soonchunhyang University, Gumi Hospital, Korea.

Abstract

Most giant sacral schwannomas are associated with moderate to massive bone destruction before they extend into the presacral space. These lesions can, on rare occasions, manifest as a giant tumor in the presacral space without bone destruction. We report here on the image findings of a presacral giant schwannoma in a 65-year-old man. On ultrasound and CT, the tumor appeared as an inhomogenous, well-demarcated mass that demonstrated some cystic changes and peripheral calcifications without sacral bone destruction. On the MR imaging, the tumor showed as an inhomogeneous, encapsulating mass with low signal intensity on both the T1 and T2-weighted images, except for some areas that showed cystic change.

Keyword

Schwannoma; Sacrum; neoplasms; CT; Pelvis; MR

MeSH Terms

Aged
Humans
Magnetic Resonance Imaging
Neurilemmoma*
Pelvis
Sacrum
Ultrasonography
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