This spine MRI shows a large expansile soft tissue intradural mass at the T11-L3 level, with scalloping of the posterior contour of the L1 vertebral body suggesting slow-growing intraspinal mass. The tumor occupies most of the canal, resulting in intradural localization with extradural extension to the nerves roots foraminas, but restricted to the spinal canal.
The lesion is isointense to cord on T1-weighted imaging; it displays heterogeneous T2 hyperintense, with areas of higher signal correlating with cystic degeneration; Enhanced T1- weighted sequence demonstrates mass with irregular contrast enhancement.
Conclusion
The differential diagnosis for the intradural mass at T11-L3 is nerve sheath tumor, myxopapillary ependymoma, and meningioma.