Would you recommend adjuvant chemotherapy for a Stage II colon cancer patient who has negative ctDNA but presented with obstruction?

I often tell my patients that, where the field of liquid biopsy is at present, we have not too many concerns about the positive ctDNA results. It’s the negative ctDNA results that one has to be careful with.

In general, if there’s a strong clinical reason to give adjuvant, I don’t rely on ctDNA to ch...