Colorectal OmiCs and Oncofetal Chondroitin Sulfate-modified Proteoglycans
This observational study aims to test proteomics, metabolomics and proteoglycans as predictors of postoperative complications after colorectal surgery and as biomarkers of colorectal cancer. The main questions to answer are: * can these biomarkers predict anastomotic leakages * can these biomarkers predict recurrence after colorectal cancer * can these biomarkers be used as diagnostic tests for colorectal cancer * can these biomarkers be identified in the tumor Participants will undergo elective colorectal resection or stoma closure.
• Patients diagnosed or with suspicion of colorectal cancer or adenoma, inflammatory bowel disease, late complications to colon diverticulosis, colostomy reversal or other diagnoses requiring colorectal resection.
• Patients planned to undergo elective surgical procedures coded as KJFB20-KJFB99, KJFG30-37 or KJGB00-97 according to the Danish modification of the NOMESCO Classification of Surgical Procedures
• Able to speak Danish, English, or other languages where professional interpretation is available
• Able to give informed consent