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January 24, 20260 citations

Clinicopathological, Immunohistochemical, and Molecular Genetic Study on Pleomorphic Xanthoastrocytoma and Epithelioid Glioblastoma.

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PQPeng QiILI Weng LaoQYQianlan Yao

Key Points

  • The aim is to compare the clinicopathological and molecular characteristics of pleomorphic xanthoastrocytoma (PXA) and epithelioid glioblastoma (eGBM).
  • Comparative analysis of clinical characteristics between PXA and eGBM.
  • Histological examination to identify distinct features of both tumor types.
  • Molecular genetic testing for mutations such as TERT-p, CDKN2A/B, TP53, and BRAF.
  • PXA and eGBM share similar clinical characteristics but differ histologically.
  • Both tumors accumulate similar genetic abnormalities leading to malignancy.
  • Identified mutations include TERT-p, CDKN2A/B deletions, and TP53 mutations, influenced by BRAF mutation presence.

Abstract

In conclusion, PXA and eGBM share similar clinical characteristics but exhibit different histological features. From a molecular perspective, PXA and eGBM belong to the same category and progress through the accumulation of genetic abnormalities, including TERT-p mutations, CDKN2A/B deletions, and TP53 mutations, based on the presence of BRAF mutation; however, larger sample sizes are required for validation.

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Cite This Study

Qi et al. (2026) studied this question.

synapsesocial.com/papers/697461a8bb9d90c67120b853https://doi.org/10.2174/0115680096378895251105050919
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