Type:
Educational Exhibit
Keywords:
Neoplasia, Imaging sequences, Education, MR, CT, Neuroradiology spine, CNS
Authors:
M. Smoljan1, D. Zadravec2; 1Zagreb/HR, 2Zageb/HR
DOI:
10.1594/ecr2018/C-0448
Background
Spinal meningiomas are rare,
much less common than intracranial meningiomas (spinal meningiomas represent 12% of all meningiomas).
They are slow-growing,
predominantly benign,
mostly solitary tumors,
occuring at any age (peak incidence is at 50-60 years),
more common in females.
More than 95% are WHO grade I tumors.
They are the second most common intradural extramedullary tumor,
just after schwanommas.
A very small percentage of spinal meningiomas is extradural or mixed extra/intradural with the dumbbell appearance.
Multiple meningiomas are associated with neurofibromatosis type II and are usually found in younger patients.
Although they usually are relatively small when discovered,
they can cause severe neurological symptoms due to the lack of space in the spinal canal.