of 22 animals with large , massively growing gliomas in the cns , gbvs including conglomerate aggregations of small blood vessels with endothelial hyperplasia and strong viii ag expression were observed in 13 large gliomas histologically consisting of primitive neuroepithelial neoplasms ( pnn ; so called ependymoma ) and mixed-type gliomas in combination with astrocytoma and pnn or anaplastic astrocytoma .
C3714787
cns
C0004114
astrocytoma