The aim of the present study is to assess the post-operative outcomes (morbidity and mortality) in relation to preoperative data and the oncological outcomes (overall and disease-free survival) in patients with a locally advanced colon cancer (LACC) with the necessity of a multivisceral resection (MVR).

All patients that meet the inclusion criteria will be registered in a retrospective database from 2014 to 2019 (5 years) Data will be reported for every patients with colon cancer to have had either a resection of another organ or structure in addition to resection of the primary tumor, or to have had a T4 (a or b) tumour on postoperative histopathology.

Data included are patient demographics, ASA score, tumor localization, preoperative imaging, neoadjuvant treatments, type of bowel resection and adjacent organs resected, tecnique (laparoscopic/laparotomic), postoperative complications and 30-day mortality, histopathology data including TNM scoring, completeness of surgical procedure (R0 to R2) and infiltration of tumor cells in resected tissues, adjuvant oncological treatments, and long term follow-up data on local and distant recurrence and survival.

Inclusion criteria

• > 18 aa
• Patients with a locally advanced colon cancer (LACC) with the necessity of a multivisceral resection (MVR).

Exclusion criteria

• Stage IV
• Rectal cancer
• Emergency surgery (<48 hours from admission)
• ASA > III

Patients with a locally advanced colon cancer (LACC) with the necessity of a multivisceral resection (MVR).

Data will retrospectively collected from a maintained database in each center, created by the. A local study manager will be identified for each participating center.