High-Grade Glioma Diagnosis

see Glioma Diagnosis.

see Glioblastoma diagnosis.


Results highlighted the role of PTX3 and TIMP1 which were previously considered in Gliomagenesis as well as LTF as a new potential biomarker 1).


Neurite orientation dispersion (NODDI) seems to be useful in reflecting the high-grade glioma infiltration to corticospinal tract (CST), and can evaluate the CST destruction with a performance similar to DTI by providing additional information about neurite density for HGG-induced CST injury 2).


Fujioka et al. established a novel, non-invasive molecular diagnostics using a chip-based digital PCR system targeting circulating tumor DNA derived from CSF with high sensitivity and specificity, especially for high-grade gliomas 3).


Usually, low-grade gliomas show no increase in tumor rCBV, whereas high-grade gliomas demonstrate high relative cerebral blood volume (rCBV) that in some cases even extends outside the contrast-enhancing portions of the tumor 4).

see Stereotactic biopsy of high-grade glioma.

They require MGMT, isocitrate dehydrogenase (IDH) and 1p/19q co-deletion status, the determination of these molecular diagnostics should be prioritized


1)
Ahmadi-Beni R, Shahbazi S, Khoshnevisan A. An integrative bioinformatics investigation and experimental validation of critically involved genes in high-grade gliomas. Diagn Pathol. 2022 Sep 24;17(1):73. doi: 10.1186/s13000-022-01253-0. PMID: 36153549.
2)
Jiang R, Hu X, Deng K, Jiang S, Chen W, Zhang Z. Neurite orientation dispersion and density imaging in evaluation of high-grade glioma-induced corticospinal tract injury. Eur J Radiol. 2021 May 2;140:109750. doi: 10.1016/j.ejrad.2021.109750. Epub ahead of print. PMID: 33991969.
3)
Fujioka Y, Hata N, Akagi Y, Kuga D, Hatae R, Sangatsuda Y, Michiwaki Y, Amemiya T, Takigawa K, Funakoshi Y, Sako A, Iwaki T, Iihara K, Mizoguchi M. Molecular diagnosis of diffuse glioma using a chip-based digital PCR system to analyze IDH, TERT, and H3 mutations in the cerebrospinal fluid. J Neurooncol. 2021 Jan 8. doi: 10.1007/s11060-020-03682-7. Epub ahead of print. PMID: 33417137.
4)
Hu L. S. et al. Correlations between perfusion MR imaging cerebral blood volume, microvessel quantification, and clinical outcome using stereotactic analysis in recurrent high-grade glioma. AJNR Am J Neuroradiol 33, 69–76, 10.3174/ajnr.A2743 (2012).
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