Upper Tract Urothelial Carcinoma

Hello. First time posting, I think this is the correct board? 
I'm looking for any others that can share stories about UTUC treament? My mother recently had a small tumor and part of her ureter removed. Margins and lymph nodes have come back clear and she was diagnosed at stage 3. At this time her surgeon is suggesting chemotherapy as the next step. We meet with her oncologist in just a few days. Does anyone have a simliar diagnosis and what was your treatment plan? I appreciate any feedback. Thanks very much.