Fig. 2From: Widely metastatic glioblastoma with BRCA1 and ARID1A mutations: a case reportHistopathology of post-treatment recurrence of IDH-wildtype GBM in the temporal lobe.a Gross image of the right temporal lobe with resection cavity (6.0 × 3.5 cm) and residual tumor. b Tumor is histologically compatible with GBM on H&E stain. c Tumor cells are diffusely positive on GFAP stain. d Tumor cells demonstrate positive MIB-1 focally up to 60%. e Tumor cells are negative on reticulin stain. f Tumor cells are negative (wild-type) on IDH1 R132H stain. Micrographs are 10X magnificationBack to article page