Article Text

Download PDFPDF
Proton magnetic resonance spectroscopy findings of a sacrococcygeal schwannoma
  1. S. Hascalik*,
  2. O. Celik*,
  3. G. Erdem,
  4. C. Ara and
  5. H. Kirimlioglu§
  1. * Departments of Obstetrics and Gynecology, Medical Faculty, Inonu University, Malatya, Turkey
  2. Departments of Radiology, Medical Faculty, Inonu University, Malatya, Turkey
  3. Departments of General Surgery, Medical Faculty, Inonu University, Malatya, Turkey
  4. § Pathology, Medical Faculty, Inonu University, Malatya, Turkey
  1. Address correspondence and reprint requests to: Seyma Hascalik, MD, Department of Obstetrics and Gynecology, Turgut Ozal Medical Center, Inonu University, 44069 Malatya, Turkey. Email: shascalik{at}


Schwannoma is tumor of peripheral nerves, originating from Schwann cells. It is a rare nerve sheath tumor, which frequently occurs in the intracranial acoustic nerve and spinal nerves. We report on a 28-year-old woman who suffered from a large pelvic mass that was diagnosed to be sacrococcygeal schwannoma. The features of proton magnetic resonance spectroscopy (MRS) study are discussed. The magnetic resonance imaging instrument was a 1.5T, Gyroscan Intera with a body coil as a radiofrequency transmitter and a signal receiver. T2-weighted images were obtained under the following conditions—turbo spin echo (TSE) T2: turbo spin echo repeat time (TR) = 4500 msec, echo time (TE) = 96 msec. Single voxel MRS was performed by the point-resolved spectroscopy technique with a long TE (136 msec). MRS measurement was performed on two different parts of the tumor. As well as strongly elevated choline and lipid signals, the tumor spectrum showed increased N-acetylaspartate resonances. MRS can be used effectively in the preoperative diagnosis of retroperitoneal and pelvic masses, which demonstrate unusual clinical features.

  • magnetic resonance spectroscopy
  • sacrococcygeal
  • schwannoma

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.