Fig. 5.

Meningioma. A 64-year-old female who presented with increasing gait instability as well as right-sided radiating rib pain. (A) Initial MRI demonstrated an intradural, extramedullary mass at the T5–T6 level on T2-weighted sequences. (B) T1-weight contrast-enhanced imaging showed homogeneous enhancement. (C) Axial imaging demonstrated significant mass effect on the associated cord. (D) Intraoperatively, a distinct mass was encountered ventral to the exiting nerve root on the right. (E) Opening of the dentate ligament allowed for direct access to the tumor, (F) which was able to be resected while leaving the overlying nerve root intact.