Abstract
We read with interest the article by Bartels et al1 describing a higher lymph node yield at surgery associated with preoperative colonoscopic tattooing for colorectal cancer. It is possible that tattooing may also help with the identification of peritoneal disease. We previously described a case wherein carbon pigment was seen in peritoneal adenocarcinoma deposits after preoperative tattooing of a rectal cancer.2 After neoadjuvant chemotherapy, the visually striking black deposits were seen at surgery on the rectosigmoid mesentery and adjacent to the cecal pole, without other areas of carbon staining in the peritoneum identified.
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