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探讨腹腔和腹膜后间隙结核的CT表现特征及其解剖病理基础。材料和方法：回顾性分析8例淋巴结结核，7例淋巴结结核合并结核性腹膜炎及4例结核性腹膜炎的CT表现。结果：淋巴结结核主要表现为淋巴结肿大，增强扫描呈环状强化，可融合成分隔状肿块，主要累及肠系膜、网膜、胰周及L2平面以上腹膜后间隙，且腹腔淋巴结受累程度明显重于腹膜后间隙淋巴结。结核性腹膜炎之腹水密度较高，系膜、网膜上有斑片状及结节状病灶，肠曲粘连固定。结论：CT扫描可反映淋巴结结核及结核性腹膜炎的解剖病理改变特征。
To investigate the CT features of abdominal and retroperitoneal space tuberculosis and its anatomical and pathological basis. Materials and Methods: The CT findings of 8 cases of lymph node tuberculosis, 7 cases of tuberculous peritonitis with tuberculosis and 4 cases of tuberculous peritonitis were retrospectively analyzed. Results: The main manifestations of lymph node tuberculosis were lymphadenopathy. The enhancement scan showed ring-like enhancement, which could be integrated into the septum mass, mainly involving the mesentery, omentum, peripancreatic and retroperitoneal space above L2, and the degree of abdominal lymph node involvement was significantly heavier than that Retroperitoneal space lymph nodes. Ascites tuberculous peritonitis higher density, mesangial, retinal patchy and nodular lesions, intestinal song fixed adhesion. Conclusion: CT scan can reflect the anatomical and pathological features of lymph node tuberculosis and tuberculous peritonitis.