_:vb50954394 . _:vb50954394 "url:http://www.nlm.nih.gov/medlineplus/ency/article/000734.htm"^^ . _:vb50954394 . _:vb50954394 "url:http://www.cancer.gov/cancertopics/pdq/treatment/primary-CNS-lymphoma/Patient/page1"^^ . _:vb50954394 "A cerebrum cancer that affects the lymph cells and derives_from the brain."^^ . _:vb50954394 "url:http://en.wikipedia.org/wiki/Primary_central_nervous_system_lymphoma"^^ . _:vb50954394 . _:vb50954394 . _:vb50954394 "url:https://www.ncbi.nlm.nih.gov/pubmed/10563426"^^ . _:vb50954394 . _:vb50954394 . _:vb50954394 . _:vb50954394 .