Preoperative localization of stomach cancer in Mongolian patients using endoscopy and computed tomography

Abstract

Purpose: To evaluate stomach cancer localization and type in preoperative patients in Mongolia using CECT and endoscopy Materials and Methods: We studied 1308 new cases of gastric cancer from 88256 subjects underwent abdominal CT with intravascular contrast injection and sodium bicarbonate powder granules at "Ulaanbaatar Songdo" hospital in 20122018. According to Histologic analysis, 150 (100%) patients with gastric cancer or adenocarcinoma have been included into this retrospective study. The CT images were reviewed from the UB Songdo Hospital database, PACSPLUS and OCS network. Statistical data processing was done using SPSS 22 software.To classify stomach tumor localization, we divided stomach in to 3 anatomic parts; the size of tumor was measured as longest dimension visible on CT examination. Results: Study populations age range was 22-84 age (mean 56.23 years ± 12.53SD). In terms of gender, 84 (56%) were male and 66 (44%) were female clients.The sex ratio was 1.27: 1. The endoscopy had diagnosed 52 cases (34.7%) in T3 stage, while CT diagnosed 58% (38.7%) in T3 stage. Regarding the tumor location, 31 (37.9%) males and 25 (36.9%) females had involvement of the the upper part; while the T3 and T4 stages had been detected in cardia of 36 (42.9%) males and 22 (33.3%) females. Combined approach of endoscopy and CT classifiied the tumor locato in cardia in 58(38.7%). Conclusion: The most cases of malignant stomach neoplasms in our study were 20-35 years old, with the highest mortality rate of 30.0% in 50-59 years and of 42% in 60 years and over and over age 70 and below. Geographically, the majority of study subjects or 98 (65.3%) resided in central areas of Mongolia. CT proved its ability in the localization of gastric cancer and its capability in evaluation of stomach and adjacent organs.