[Emergencies in cancer of the colorectum].

The 20% of the case of Large bowel neoplasia needs an emergency surgical act because of its complications. The most frequent is large bowel occlusion followed by perforation, fistula and haemorrhage. The different possibilities of surgical treatment depend either on the type and the site of the complication but mostly on the general conditions of the patients and on his associated pathology. A careful evaluation of all these factors is the only way to determine which surgical treatment to practise and which is the risk the patient will undergo. In the last years, thanks to a deeper acknowledgment on pathophysiology and a better surgical technique, resection anastomosis surgery has taken more and more place decreasing dramatically mortality and morbidity of this surgery.