Characteristics of variants of colorectal carcinoma that do not metastasize to lymph nodes.
D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D003201:Computers; D006801:Humans; D008207:Lymphatic Metastasis; D011379:Prognosis; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery