World Journal of Gastrointestinal Oncology, cilt.17, sa.4, 2025 (SCI-Expanded)
BACKGROUND Gastric cancer is a major global health concern, often diagnosed at advanced stages, leading to poor prognosis. Proximal and distal gastric cancers exhibit distinct clinicopathological features. AIM To investigate the diagnostic value of hematological and inflammatory markers in differentiating proximal and distal gastric cancers and to evaluate their association with clinical outcomes. METHODS A retrospective cohort study was conducted on 150 patients diagnosed with gastric adenocarcinoma through histopathological analysis. Patients were categorized into proximal gastric cancer and distal gastric cancer groups. Laboratory parameters were analyzed. RESULTS Of the 150 patients, 84 had proximal gastric cancer and 66 had distal gastric cancer. Dysphagia was significantly more common in the proximal gastric cancer group, while anemia and higher platelet-to-lymphocyte ratio values were observed in the distal gastric cancer group (P = 0.031). Tumor stage and neutrophil-to-lymphocyte ratio emerged as independent predictors of all-cause mortality. No significant differences were found in other laboratory or biochemical parameters between the groups. CONCLUSION Proximal and distal gastric cancers demonstrate distinct clinical and laboratory profiles. The platelet-to-lymphocyte ratio may serve as a valuable marker in differentiating cancer localization, while the neutrophil-to-lymphocyte ratio is a prognostic indicator for mortality. These findings highlight the potential of hematological markers in optimizing diagnosis and treatment strategies for gastric cancer.