MRI
At the level of T11/T12 intervertebral disc space, there is a well-defined, ovoid, ventral intradural, extramedullary enhancing mass. This mass is T1/T2 isointense, STIR hyperintense, and demonstrates some with some internal cystic signal. This lesion significantly indents the thoracic spinal cord, resulting in severe mass effect and increased intramedullary STIR signal. The mass has an adjacent T2 flow void.