I personally had a biopsy and it was inconclusive … ultimately waited 6mos and tumor had grown and I had 6 of 8 lymph nodes positive (no show on dotatate) as well as perineural and vascular invasion… Every case is different and my case is not, was not, like the probable majority that grow slowly. My point to consider, biopsies are not always reliable when trying to accurately diagnosis a very small lesion…