What is a chemo embolization on a metastatic gist to the liver (stage 4)?

While there is : Available chemotherapy/molecular therapy for gist, and most hepatic metastasis derive blood supply from the arterial (as opposed to the portal circulation), direct chemotherapy with 5 fu has been used for years. Imatinib is the drug for gist. And radiolabeled/adherent yttrium 90 beads are commercially available. Surgicalresection is another option.

Directed Chemo: Chemoembolization is a procedure performed by an interventional radiologist in which anticancer drugs are administered directly into a tumor through its feeding blood supply, with concurrent or subsequent blockage of the feeding vessel by occlusive agents that are injected through the delivery catheter. This permits a higher concentration of drug to be in contact with the tumor for longer time.