I was diagnosed in November with a 5.5CM NET at the head of my pancreas and a 1.2CM NET on the ampula. They were found incident to a CT scan I had for a sciatica issue so I was having no symptoms although the larger one may have been contributing slightly to my back issue. NET is the best pancreatic cancer you can get with a much higher survival rate than typical carcinoma. I had a biopsy which was used to diagnose the grade to determine their rate of growth. The smaller one was 1%, the larger was 5% and I was given a WHO Grade 2 which basically meant it was slow growing. (I did develop pancreatitis after the biopsy and was hospitalized for 3 days. I think something got nicked and leaked but I have never gotten a full explanation) Although I had no symptoms, I was assured I would in a few years and decided to have the surgery now while I was younger (66) and not experiencing any negative symptoms. I had the Whipple Procedure in February to remove it. The procedure is major but after 3.5 months I have recovered almost completely and have no regrets. With the small size of your tumor maybe your procedure would be different. Because NET's are rare, everyone I asked emphasized seeing someone who specializes in NET's. I live in Nashville, TN and was fortunate Vanderbilt has 3 doctors that do NET's fairly routinely. Hope this helps.