Question

which lesion may cross the intervertebral disc to involve adjacent segments? a) chordoma b) giant cell tumor c) osseous metastasis d) hemangioma

Explanation:

Osseous metastases often invade across intervertebral discs to affect adjacent vertebral segments, as the disc is not a barrier for these metastatic lesions. Chordomas, giant cell tumors, and hemangiomas typically remain confined to individual vertebral segments and do not cross intervertebral discs.

Answer:

C) osseous metastasis