Radiofrequency ablation as a treatment for hilar cholangiocarcinoma

Figure 1 A: The white arrow indicates the injection hole; B: The white arrow indicates the side hole, and the black arrow indicates hooked array radiofrequency needles

Figure 2 A case with type IIIb Klatskin tumor. A: Plain CT scan reveals that the tumor is in the main trunk of left hepatic duct with dilatation of branches; B: The patient underwent RFA under CT guidance after internal and external drainage for two weeks.

Figure 3 A case with type IV Klatskin tumor. A: The plain CT reveals that the tumor is in the portal hepatic region with dilatation of the left and right hepatic ducts; B: The patient underwent RFA under CT guidance after internal and external drainage for 2 wk; C: The plain CT scan reveals a liquidized and necrotic region of the tumor in the portal hepatic region without contrast enhancement 2 mo after RFA.