Peritoneal involvement in stage II colon cancer.

Abstract

A pathologist (K.S.) reviewed histologic slides for peritoneal involvement by tumor cells for 118 patients with stage II colon cancer. Patients were followed up for a median of 6 years. Tumor cells were found free in the peritoneal space in 16 cases (13.6%). The presence of cancer cells free in the peritoneal space was associated with lymphovascular invasion (P = .001) and neural invasion (P < .001). The overall 5-year survival was 80% in the patient population, but was 39% and 86% for those with and without tumor cells free in the peritoneal space, respectively (P < .0001). Multivariate analysis confirmed that free tumor cells within the peritoneal space (P < .0001) and lymphovascular invasion (P = .007) were related independently to outcome. Peritoneal involvement with tumor cells free in the peritoneal space in stage II colon cancer is a powerful indicator of outcome; patients have a survival similar to that for patients with stage III disease.

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@article{Lennon2003PeritonealII, title={Peritoneal involvement in stage II colon cancer.}, author={Ann Marie Lennon and Hugh Mulcahy and John M. P. Hyland and Christopher A Lowry and Andr{\'e} O. White and David William Fennelly and James J. Murphy and Diarmuid P. O'Donoghue and K M Sheahan}, journal={American journal of clinical pathology}, year={2003}, volume={119 1}, pages={108-13} }