The role of extended resection in locally recurrent colorectal cancer with invasion of the aortoiliac bifurcation: a rare clinical case.

Colorectal carcinoma (CRC) is the third most common cancer and the fourth deadliest. Despite recent advances in screening methods and preoperative imaging techniques, the threat of colorectal cancer remains at an all-time high. Moreover, even after curative treatment, disease recurrence occurs in up to 40% of all cases. However, half of patients with recurrent disease do not register any distant metastases. Therefore, much effort should be expended in identifying and evaluating these patients, as many of them are suitable candidates for en bloc resections with perioperative chemoradiation. In fact, it has recently been found that overall survival benefits greatly from extended resections, provided that free margins are achieved intraoperatively. In this case report, we will present a case of locally advanced recurrent colorectal cancer invading the aortoiliac axis and our approach to achieving a R0 resection.