Glioblastoma with Both Oligodendroglioma and Primitive Neuroectodermal Tumor-Like Components in a Case with 9-Year Survival

Figure 2

(a) Markedly increased cellularity of neoplastic astrocytes with nuclear pleomorphism and hyperchromasia (200x), (b) microvascular proliferation (200x), (c) necrosis (200x), and (d) increased proliferation index of tumor cells as revealed by Ki-67 immunostaining (16.3%) (100x).

(a)

(b)

(c)

(d)