_:vb50955213 "A malignant astrocytoma that is characterized by tumor cells with characteristics suggestive of an astrocytic origin (positive for GFAP), arranged perivascularly."^^ . _:vb50955213 "url:https://www.futuremedicine.com/doi/full/10.2217/cns-2018-0012"^^ . _:vb50955213 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5910607/"^^ . _:vb50955213 . _:vb50955213 . _:vb50955213 . _:vb50955213 .