Hi, 

My dad who was perfectly healthy up until a couple of weeks ago suddenly became jaundiced, and after ultrasound and ct scans they said there is something abnormal around his ampullary duct. It looks like it has folded over they said. His sodium levels are also very low. They've taken biopsies from around the area, they also tried to fit a stent but failed and so have a PTC drain fitted at the moment to drain the bile.

I've read about this type of cancer and saw the poor prognosis it has. Please tell me is there anything else this could be instead of cancer as we wait for the results? They said it could take 2 -4 weeks. I'm heartbroken. Is cancer the only possible diagnosis based on the above? 

Thanks