74 y/o female referred for MRI with low back pain and bilateral leg weakness, ? spinal stenosis. MRI demonstrated an intradural, extramedullary, mildly enhancing mass at the superior portion of the L1 level consistent with a meningioma. Note was also made of "spinal stenosis" at L1-2 secondary to diffuse concentric disk bulging and at L4-5 secondary to ligamentum flavum hypertrophy and degenerative changes in the posterior elements. Surgical excision and pathologic evaluation of the mass at L1 confirmed a meningioma.
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  4. Takemoto K; Matsumura Y; Hashimoto H; Inoue Y; et al. MR imaging of intraspinal tumors--capability in histological differentiation and compartmentalization of extramedullary tumors. Neuroradiology 1988;30(4):303-9 UI:89015045
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