Tuberculum Sella Meningioma
Last Updated: September 30, 2018
Representing 5 to 10% of intracranial meningiomas, tuberculum and diaphragm sellae meningiomas are intimately involved with the critical suprasellar structures: the optic nerves and chiasm, the hypothalamic-pituitary axis, and the internal carotid-anterior cerebral artery complex. Unlike their counterparts that arise more laterally from the clinoid process or sphenoid wing, these suprasellar lesions are potentially resectable through an expanded endonasal approach.
In appropriately selected patients and when compared with the transcranial route, the endonasal approach decreases the risk of iatrogenic injury to the optic apparatus and allows early tumor devascularization. For transcranial methods of resection, refer to the chapter on Tuberculum Sella Meningioma in the Cranial Base Surgery volume.