| [ Summary ] |
The curability of EMR and ESD specimens is judged by histopathological examination, and additional treatment is decided on the basis of the results obtained. For the purpose of precise diagnosis, appropriate handling of endoscopically resected material is necessary. An outline illustrating methods to properly handle specimens is exhibited in this paper. Points related to histopathological examination of endoscopically resected material, such as cancer involvement at resected margins, histological type, depth of submucosal invasion, vessel invasion and tumor budding are explained according to the general rules for clinical and pathological studies of colonic, rectal and anal cancer. Guidelines for treatment of colorectal cancer published by the Japanese Society for Cancer of the Colon and Rectum are also presented. |