each of the 10 had at least one of the following indications of inadequate resection or dissemination of disease to local lymph nodes ( the first indication is a macroscopic evaluation , while the remaining four are all microscopic ) : incomplete excision , poorly differentiated tumor , invasion of the line of resection , invasion of the polyp stalk , and invasion of venous or lymphatic channels .
C0012634
disease
C0027651
tumor