A family member has recently been diagnosed with stage 3A Bike duct cancer.- but her numerous biopsy procedures are coming back inconclusive despite tumour appearing to be growing. Can anyone explain in simple terms why cancer would have been staged but biopsy come back inconclusive. (Note they have determined it is inoperable based on size, positioning and some liver resection trial) along with fit test that says no to removing. Palliative chemo was the suggested option but unsure whether oncology will take on due to inconclusive tests. why is bile duct cancer so difficult to get a reading on - there has been around 5 biopsy now