_:vb50954689 . _:vb50954689 . _:vb50954689 "A central nervous system benign neoplasm that derives_from fat cells."^^ . _:vb50954689 . _:vb50954689 . _:vb50954689 . _:vb50954689 "url:https://www.ncbi.nlm.nih.gov/pubmed/12597248"^^ .