Gangliocytoma and Ganglioglioma

Gangliocytoma (WHO grade I) and Ganglioglioma(WHO grade I or II) are well-differentiated and well-circumscribed, slow-growing neuroepithelial tumors comprised of neoplastic, mature ganglion cells, either alone (gangliocytoma) or in combination with neoplastic glial cells (ganglioglioma) (Nelson et al. 2000a).

Both types of tumors are relatively uncommon and generally have a favorable prognosis. Most tumors are supratentorial and the temporal lobe is the most common site. Infratentorial tumors can also be found.