J Korean Neurosurg Soc.  1997 Apr;26(4):596-599.

Sequestered Disc Mimicking Benign Neurogenic Tumor: Report of 2 Cases

• Kim SJ
• Song JH
• Kim MH
• Park HK
• Kim SH
• Shin KM
• Park DB

Abstract

We describe two rare cases of sequestered disc herniation which mimicked benign nerve sheath tumors radiologically. It is often quite difficult to differentiate a sequesterded disc from an extradural tumor when the discal fragments are migrated away from the origin. Distinguishable features of clinical and radiological characteristics between sequestered discs and benign intraspinal tumors were disscused. Although a well enhancing spherical mass in the spinal canal is routinely diagnosed as tumors, a free sequestered disc fragment also should be taken into consideration if the mass shows peripheral enhancement accompanied with degenerative spinal changes on MRI.

Keyword

Sequestered disc; Nerve sheath tumor; Radiological characteristics

MeSH Terms

Magnetic Resonance Imaging
Nerve Sheath Neoplasms
Spinal Canal