TY - JOUR
T1 - Epithelioid glioblastoma arising from pleomorphic xanthoastrocytoma with the BRAF V600E mutation
AU - Tanaka, Shingo
AU - Nakada, Mitsutoshi
AU - Nobusawa, Sumihito
AU - Suzuki, Satoshi O.
AU - Sabit, Hemragul
AU - Miyashita, Katsuyoshi
AU - Hayashi, Yutaka
PY - 2014/7
Y1 - 2014/7
N2 - Pleomorphic xanthoastrocytoma (PXA) is classified by the World Health Organization as a grade II astrocytic tumor with relatively favorable prognosis among gliomas. A valine-to-glutamic acid substitution at position 600 of the serine/threonine-protein kinase BRAF (BRAF V600E) mutation, which is commonly found in PXA, has recently been detected in approximately 50 % of all epithelioid glioblastoma (GBM) cases. We herein report a case of epithelioid GBM developing at the site of a left temporal PXA 13 years after the treatment of the primary tumor. The BRAF V600E mutation was detected in both tumors. These findings suggest that epithelioid GBM may arise from a PXA with a BRAF V600E mutation.
AB - Pleomorphic xanthoastrocytoma (PXA) is classified by the World Health Organization as a grade II astrocytic tumor with relatively favorable prognosis among gliomas. A valine-to-glutamic acid substitution at position 600 of the serine/threonine-protein kinase BRAF (BRAF V600E) mutation, which is commonly found in PXA, has recently been detected in approximately 50 % of all epithelioid glioblastoma (GBM) cases. We herein report a case of epithelioid GBM developing at the site of a left temporal PXA 13 years after the treatment of the primary tumor. The BRAF V600E mutation was detected in both tumors. These findings suggest that epithelioid GBM may arise from a PXA with a BRAF V600E mutation.
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U2 - 10.1007/s10014-014-0192-2
DO - 10.1007/s10014-014-0192-2
M3 - Article
C2 - 24894018
AN - SCOPUS:84905085877
SN - 1433-7398
VL - 31
SP - 172
EP - 176
JO - Brain tumor pathology
JF - Brain tumor pathology
IS - 3
ER -