@mdramsey48 I can see an advantage in the oncologist who treated you for breast cancer involved in care for your ET. That doc has a good handle on the lingering effects of any drugs or radiation treatment that you had previously and can help manage them in light of the new diagnosis. Ideally, you'd have a hematology oncologist AND your breast cancer doc working in tandem. But health care in America is not very collaborative. A consult with a hemo oncologist is at least warranted.