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Table 2 Brain tumors encountered in the German Neuropathology Reference Center for Epilepsy surgery

From: Low-grade developmental and epilepsy associated brain tumors: a critical update 2020

Tumor entity Number (%) Location temporal Age @ Onset Disease Duration Age @ Surgery
GG 886 (52.7) 81.6% 12,8 11,8 25,0
DNT 288 (17.1) 72.5% 14,6 10,8 25,0
PA 90 (5.4) 65% 14,9 11,9 24,2
LGNET 62 (3.7) 78.3% 17,3 12,8 29,4
IDG 40 (2.4) 42.5% 14,9 15,3 24,9
AG 13 (0.8) 53.8% 5,0 14,3 15,8
MVNT 6 (0.4) 66.7% 17,3 20,7 35,2
PGNT 4 (0.2) 75% 12,0 1,0 23,3
Total of LEAT 1389 (82.7) 76.8% 13,6 11,8 25,1
PXA 41 (2.4) 85.3% 18,6 12,2 29,7
CYSTS 34 (2) 82.4% 22,4 11,7 35,2
OLIGO 99 (5.9) 53.4% 24,2 12,4 38,1
ASTRO 70 (4.2) 57.1% 26,2 6,5 32,8
MEN 24 (1.4) 45.5% 40,7 6,2 46,1
OTHER 23 (1.4) 52.9% 17,1 9,5 26,8
Total of non-LEAT 291 (17.3) 61.6% 24,2 10,0 35,1
Total 1680 74.0% 15,5 11,5 26,9
  1. GG ganglioglioma, DNT dysembryoplastic neuroepithelial tumor, PA pilocytic astrocytoma, LGNET low-grade neuroepithelial tumors (not otherwise specified), IDG isomorphic diffuse glioma, AG angiocentric glioma, PGNT papillary glio-neuronal tumor, MVNT multinodular and vacuolated neuronal tumor of the cerebrum, PXA pleomorphic xanthoastrocytoma, CYSTS dermoid, epidermoid or arachnoidal cysts (excluding LEAT with cystic components), OLIGO diffuse gliomas with oligodendroglial phenotypes, i.e. oligodendrogliomas or mixed oligoastrocytomas diagnosed before discovery of IDH1 mutations and 1p/19q co-deletions, ASTRO diffuse glioma with astroglial phenotypes, MEN meningioma, OTHER brain tumors of low frequency including desmoplastic infantile ganglioglioma, neurocytoma, osteoma, subependymoma, or teratoma). Location: specifying the percentage of tumors located in the temporal lobe; Age@onset: age at onset in years. Disease duration: duration of epilepsy in years. Age@surgery: age at surgery in years