About: http://webisa.webdatacommons.org/319219242

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Tumor is a consideration as you say, stroke, infection such as meningitis or abscess are all possibilities.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org