Have you heard of Dr. Susan Love's Breast Book, she has so much information in there. I had read something about neouroendocrine in her book, but it's back at the library at my cancer centre. I highly recomment getting this book check your cancer clinic library and if they don't have one check your local library. It's amazing what I learned in the book, but I concentrated on my cancer (sorry). Good luck to you and let me know if you get your answers. I will look on line as well for you, it's got me curious as well. pearl_neidlinger@yahoo.ca