FIG 4.

DL-GNT with isolated spinal cord mass. Sagittal T1-weighted postcontrast image of the cervical spine (A) demonstrates a small focal enhancing mass (long arrow) expanding the lower cervical spinal cord. Scattered areas of linear leptomeningeal enhancement are also seen along the dorsal (short arrows) and ventral aspects of the cord. Sagittal T2-weighted and T1-weighted postcontrast images of the spine (B and C) in another patient demonstrate a large hypointense, enhancing intramedullary mass extending from T2 to T5, with associated large, septated syrinx. These 2 examples highlight that intramedullary masses in DL-GNT can exhibit different appearances.