CEACAM5 and neoplasm: Data relating to patient demographics, clinicopathological features, radiological findings, and perioperative characteristics were reviewed retrospectively, including age; gender; body mass index (BMI); ASA Physical Status (ASA); tumor location, TNM staging and carcinoembryonic antigen (CEA) level; receiving of neoadjuvant chemoradiotherapy (nCRT), LCA retention and indocyanine green (ICG) angiography.