PMC5379788_01
MRI scan showing intradural extramedullary lesion hypointense on T1WI sagittal (a) and axial (d), and hyperintense on T2WI sagittal (b) and axial (c) at the D4-5 level
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F1
T2WI [Figure 1].
Intraoperative photograph showing a cystic lesion on left side displacing the cord to right
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F2
Thoracic laminectomy was performed and per-operatively the lesion was found to be totally cystic and attached to the filament of the D4 dorsal root [Figure 2]. The cyst contained xanthochromic fluid and it was excised in toto. The patient recovered completely and has no clinical evidence of recurrence over the last 2 years and 9 months of follow-up.
Microphotograph showing spindle shaped cells with elongated nuclei arranged in a palisading fashion (H and E, x100)
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F3
Histopathological examination revealed the lesion to be a cystic schwannoma [Figure 3].