the vascularization of 50 tumors of the central nervous system ( cns ) including 17 meningiomas , 25 neuroectodermal tumors , i.e. , astrocytomas , oligodendrogliomas , mixed gliomas , glioblastomas , medulloblastomas , seven metastatic carcinomas , and one malignant hemangioendothelioma were investigated using biotinylated ulex europaeus type i lectin ( uea i ) in an indirect avidinbiotin-peroxidase procedure .
C0004114
astrocytomas
C0017636
glioblastomas