_:vb50935905 . _:vb50935905 "A vascular cancer that derives_from the cells that line the walls of blood vessels or lymphatic vessels."^^ . _:vb50935905 . _:vb50935905 "url:https://www.ncbi.nlm.nih.gov/pubmed/23327728"^^ . _:vb50935905 "url:http://en.wikipedia.org/wiki/Hemangiosarcoma"^^ . _:vb50935905 "url:https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&ns=ncit&code=C3088"^^ . _:vb50935905 . _:vb50935905 . _:vb50935905 "url:https://en.wikipedia.org/wiki/Angiosarcoma"^^ . _:vb50935905 . _:vb50935905 . _:vb50935905 .