Fig. 5

Case 5. a–c Observed HE staining under × 400, GFAP staining under × 200, and Ki-67 staining under × 100 at the specimens obtained from Fig. 2d (white arrow). d–f Observed under × 400 of HE staining, under × 200 of GFAP staining, and under × 100 of Ki-67 staining at the specimens obtained from Fig. 2e (white arrow). From a, the nuclear split pleomorphism of GBM tumor are seen obviously and accompanied by vascular distribution. The GFAP staining in b showed lighter color than e caused by less cytoplasm in b. c Ki-67 LI 50%. d Figure contains tumor cells infiltration; abnormity was uncommon. e Glial cells were plump, and GFAP staining was darker. f Ki-67 LI was 30%