Figure 1.

Photomicrographs show the different histological type of recurrent GL's. Moderately cellular tumour composed of uniform astrocytic cells concerning diffuse astrocytoma, Grade II (A). Histological features of anaplastic astrocytoma with hypercellularity and hyperchromatic, irregular nuclei, Grade III (B). Glioblastoma with high grade anaplasia and giant cells, Grade IV (C).