H3 K27 M-mutant diffuse midline gliomas in different anatomical locations

The histone H3 K27 M mutation has been frequently reported in the majority of diffuse midline gliomas. However, the relationship between the H3 K27 M mutation and clinical outcomes of gliomas from different anatomical locations is still not fully understood. A total of 120 patients with diffuse midline gliomas were selected for this retrospective observational study. The status of H3 K27 M, ATRX, TP53 and IDH was evaluated using immunohistochemistry and Sanger sequencing. Of the 120 cases aged from 4 to 76years (median=27years), 61 (50.8%) were harboring the H3 K27 M mutation.

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