As part of my follow up at Mayo after chemo and radiation for anal cancer in Oct Nov 2024, I had an MRI at Mayo in Feb 2025 and upon return visit in May they did at CT , the combination of those two tests showed them a complete picture of what they were looking for as possible metastic activity in lymph nodes or other organs
results are negative right now
I am on a schedule to go back every 3 months for 2 years ,, I think we need both CT and MRI
Best wishes on your journey,, so many questions as we go along , Let us know how you are doing !!