345830.fig.001a
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345830.fig.001b
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345830.fig.001c
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Figure 1: Magnetic resonance imaging of the thoracic spine with gadolinium contrast at the T9-10 region demonstrating an enhancing intradural extramedullary lesion exiting the neural foramen. (a) Preoperative MR imaging showing the initial size of the mass ( 3 . 8 × 3 . 6 × 4 . 5  cm) with no spinal cord compression. (b) Immediate postoperative MR image demonstrating subtotally resected mass with a 1 . 5 × 1 . 0 × 1 . 5  cm residual within the right neural foramen. (c) MR imaging obtained 5 months postoperatively demonstrating progression of the enhancing component measuring 1 . 9 × 1 . 0 × 1 . 7  cm. (d) MR imaging with gadolinium enhancement showing stable disease 15 months after stereotactic radiosurgery.