Primary outcome
tumors
TUMORS, CAVITY
The primary outcome is the localization accuracy. While checking the intraperitoneal cavity at the start of the surgery, the visibility of tattooing will be first checked. After the complete resection of the colon segment, resected colon specimen will be checked the localization with autologous blood tattooing. An accurate localization is defined as tumors identified both by visible tattoo during surgery and by pathological examination of the resected specimen.