In 2017 i was diagnosed with rare appendix cancer. that same year an oncological surgeon specializing in this cancer performed hipec with debulking. is a ct scan with contrast better than an mri for detecting other cancers that might crop up?

Cancer: Hello. It depends on the kind of tissue what type of study is more specific (for example: "soft tissue" or small tumors is preferred MRI, for bones X-rays/scintigraphy), and some studies complement others. It's important you continue your follow-up consults with your oncologist, as they are the one you know your case the best, and they would ask for the pertinent studies if necessary.