@colleenyoung thank you for the FAP information link. I suspect I may have a desmoid tumour.I had an abdominal MRI done recently and the surgeon who had ordered it now wants me to have an abdominal CT scan. I keep forgetting to ask my doctor and the surgeon what can a CT scan show that an MRI wouldn’t? I have always assumed an MRI shows more detail than a CT scan. 🤷🏼‍♀️

I am reluctant to have the CT scan because the last time I had an abdominal CT scan I broke out in hives after drinking the CT contrast and was told I may be allergic to it, albeit not anaphylactic.