PXA almost always occurs at a superficial cerebral cortical location.Giant cell glioblastomas usually contain very small neoplastic cells between giant cells.All these are helpful points.

• PXA一般发生于大脑皮层浅表部位；而巨细胞性胶质母细胞瘤在巨细胞之间往往存在小的肿瘤细胞.；上述各点都有助于我们去判断