主题词：Gastric Cancer Management and Outcomes; Hepatocellular Carcinoma Treatment and Prognosis; Pancreatic and Hepatic Oncology Research; Cholangiocarcinoma and Gallbladder Cancer Studies; Esophageal Cancer Research and Treatment; Colorectal Cancer Surgical Treatments; Ferroptosis and cancer prognosis; Colorectal Cancer Treatments and Studies; Cancer Immunotherapy and Biomarkers; Colorectal and Anal Carcinomas; Gastrointestinal Tumor Research and Treatment; Genetic factors in colorectal cancer; Colorectal Cancer Screening and Detection; Inflammatory Biomarkers in Disease Prognosis; Intraperitoneal and Appendiceal Malignancies; Neuroendocrine Tumor Research Advances; Gallbladder and Bile Duct Disorders; Cancer-related molecular mechanisms research; Cancer Genomics and Diagnostics; Helicobacter pylori-related gastroenterology studies; Cancer Mechanisms and Therapy; Cancer, Hypoxia, and Metabolism; Esophageal and GI Pathology; MicroRNA in disease regulation; Cancer Cells and Metastasis