Neoplastic Disease Of The Spine

MRI is the primary imaging modality used in the evaluation of spinal neoplasms (66). MRI has the advantage of multiplanar imaging capability and contrast sensitivity.

Neoplastic Disorder

Fig 13. Ependymoma. Axial Tl-weighted (A) and sagittal T2-weighted (B) images demonstrate a large soft tissue mass (arrow and arrowhead) in the region of the conus medullaris. The mass shows predominantly intermediate signal with areas of low and slightly increased signal. Myxopapillary ependymoma was found at surgery.

Fig 13. Ependymoma. Axial Tl-weighted (A) and sagittal T2-weighted (B) images demonstrate a large soft tissue mass (arrow and arrowhead) in the region of the conus medullaris. The mass shows predominantly intermediate signal with areas of low and slightly increased signal. Myxopapillary ependymoma was found at surgery.

Spinal canal lesions are classified into three categories by the anatomic compartment of origin (67-70):

• Intramedullary: spinal cord masses

• Intradural/extramedullary: lesions in the dura, outside of the spinal cord

• Extradural: mass outside the dura (skeletal, epidural, and paravertebral lesions)

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