Cancers of appendix are very uncommon. As reported in the case of 85 years old man, that underwent right emicolectomy with restoration of bowel continuity, the appendix was found to be gangrenous and perforated during the surgery. The hystology that comes out was adenocarcinoma of appendix that after 1 yars of follow up ramanins asymptomatic. At last the emicolectomy rappresent the best surgical treatment for all appendix neoplasm, that could be recognised from the surgeon when possible wiht intraoperavite histological examination.