@lanamarie I'm an age 82 male and was diagnosed with a PNET of 17 mm or .668 inch about two years ago. It took a year to get CT Scans and Biopsies done and luckily it did not seem to grow. Like yourself, I was told to wait and see for a year and just had another CT Scan with no additional growth. Problem is now they found a new PNET that was missed last year, and has now grown from 5 mm to 13 mm in one year. /This is almost certainly malignant, however I will discuss with the Doctor later this week to see if there are options. Surgery has been ruled out due to my age. I'm interested to hear your Doc's definition of "slow growing", and will share my Doc's with you, later this week. Keep the Faith. Regards, Rick