I am 65yrs old. I was suffering from jaundice a few month ago. now I am quite well ,but recently my abdomen seems to be swollen considerably. I am loosing my appetite, weight and is now a patient of jaundice.MRCP test shows dilated IHBD proximal CBD distended gall bladder and ascites while colonoscopy shows inflammed mucosa in ascending colon and caecum with areas of nodularity and a small ulcer in hepatic flexure.There is a tumor some where in the bile duct too,according to the doctors which has not been operated.doctors suggests of whipples surgery and HPE.What should be my step.