The extent of resection for colon cancer depends on the tumour site and vascular anatomy. Lymphatic drainage is applied along the veins in one, two or three directions, where cancer might metastasise. In surgery, it is necessary to maintain a safety margin proximally and distally to the tumour and to remove the potentially affected locoregional lymph nodes. The aim of surgical treatment is radical resection (R0), which is the only potentially curative treatment for this disease.Obseg resekcije debelega črevesa zaradi raka je odvisen od mesta tumorja in vaskularne anatomije. Limfna drenaža poteka ob žilah v eni, dveh ali treh smereh, kamor rak lahko zaseva. Pri operaciji moramo doseči zadosten varnostni rob proksimalno in distalno od tumorja ter odstraniti potencialno prizadete področne bezgavke. Cilj kirurškega zdravljenja je radikalna resekcija (R0), ki edina nudi možnost ozdravitve
