How would you incorporate ctDNA to follow up a patient status post surgical resection of the primary colon adenocarcinoma and omental deposits after 6 months of FOLFOX? 

This is an excellent question. Can ctDNA add to the treatment algorithm for patients with peritoneal carcinomatosis where imaging frequently underestimates extent of disease? We are virtually in a data-free zone, but one study (Baumgartner, Ann Surg Oncol. 2018) showed that for 59 patients (mainly w...