DZI19-121-Case-5
From MGH Learn Pathology
DIFFUSE MIDLINE GLIOMA, H3K27M-MUTANT
Histological diagnosis: Anaplastic astrocytoma
WHO (integrated histological and molecular) grade: IV
Molecular information: H3K27M: MUTANT (immunohistochemistry) IDH: wildtype (IDH1/2 PCR sequencing) P53: negative in tumor cells (immunohistochemistry, consistent with wildtype) ATRX: nuclear expression retained (immunohistochemistry, consistent with wildtype)
MGMT promoter: unmethylated (methylation specific PCR)