GIÁ TRỊ CỦA CHỤP CẮT LỚP VI TÍNH TRONG PHÂN BIỆT GIỮA LAO PHÚC MẠC VÀ UNG THƯ DI CĂN PHÚC MẠC

Abstract

Objective: To determine the value of certain computed tomography (CT) imaging features in distinguishing peritoneal tuberculosis (PT) from peritoneal carcinomatosis (PC). Subjects and Methods: This cross-sectional study included 141 patients diagnosed with PT (50 cases) and PC (91 cases), confirmed by histopathological results and ascitic fluid analysis. The CT features that differed between the two groups were analyzed for sensitivity, specificity, positive predictive value, negative predictive value, and accuracy. Univariate and multivariate logistic regression analyses were performed to identify independent diagnostic factors distinguishing PT from PC. Results: Significant differences were observed in factors such as ascitic fluid density, types of peritoneal thickening, peritoneal nodules, omental infiltration, omental nodules, omental rim and necrotic lymph nodes. Some features with relatively high diagnostic accuracy for PC included ascitic fluid density (70.8%) and peritoneal thickening pattern (77.4%). Independent diagnostic factors for PC included low-density ascitic fluid, irregular peritoneal thickening, absence of omental infiltration and presence of omental nodules. Conclusion: CT is a highly valuable tool in differentiating PT from PC. Key features suggestive of PC include low-density ascitic fluid, irregular peritoneal thickening, absence of omental infiltration and presence of omental nodules.