"The average 5-year biochemical recurrence-free survival for patients with MCP was reported to be 87.5-100% (4, 7, 14)." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7786235/#:~:text=MCP%20is%20extremely%20rare%2C%20with,glandular%20tissue%20with%20extraluminal%20mucin.
Mpuap offers the best information from experience. Radiation may be available for you. You'll want more testing maybe at a larger institution where there is more familiarity with the disease.
Best wishes, readd.