As this was a followup to previous post.. a biopsy was done during colonoscopy and came back cancer. His previous colonoscopy was only 3 years ago so the chance of spread is small. They removed polyp and did the resection you described. I assumed a frozen section would be done on the margins removed since we already knew the polyp was cancer.. and if came back positive they would remove a larger section right then. Then send everything out for paraffin section. no?
Doc.. Are you saying a surgeon can tell just by looking if it spread to the margins?