After successful whipple operation and full removed of pancreatic tumer from head since 18 month.i found on ultrasound scan heterogeneous at sergury ?

What is your doctor': I suspect your doctor must have done some explaining about the ultrasound findings. If you are concerned, then you will get much better information with getting a CT scan of the abdomen. An ultrasound is a less reliable test for abdominal problems and is only used in select situation and then only as a complementary test. It is a poor mans CT scan, so its not always reliable.

Result of surgery: Whipple procedure is the only way to control a pancreatic head lesion., 2 year survival results no better than 10%. Any heterogeneous lesion in abdomen post surgery can represent recurrence or two sites of inflammation/density. That is where the common duct is anastomosed to bowel or where pancreatic body is anastomosed to jejunum with duct suture line that can leak. PET/CAT and bx needed