<s>[INST] i m a patient of jaundice now from last four months. actually i have subacute intestinal obstruction n lymph adenopathy. 2 lymph node enlage in porta hepatis area. n my mucodot is positive. then i start att drug but after 25 day i was suffering in jaundice n before jaundice in usg my gb bladder is normal but after jaundice my gb is contracted in also fasting. now usg shows common bile duct is not visualised. n now dr advised hida scan [/INST] Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can.It cant be sometimes visulaized since ultrasound is nor so sensitive for bile duct which are small and covered with bowel and in obese people it is not easily seen. YOu should do CT scan for better disease evaluation. I hope I have answered you query. If you have any further questions you can contact us in every time.Kindly regards. Wish you a good health.DR. Ivan Rommstein </s>