question: my mom is HBsAg Positive and her CT scan os w\a: 1)colangiocarcinoma os eBD e billary obstruction 2)billary obstruction 3) liver metastasis 4)left renal cyst ERCP Is sujested by the doctors but with high risk,then chemo therapy can be given.but the risk of ERCP is very high so we are not willing to do so.please can you let me know is there any other options to treat her.she has a 4th stage cancer.