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目的探讨MSCT对肝脏孤立性坏死结节的诊断价值。方法搜集经手术和病理学证实的9例均行MSCT平扫及增强扫描的肝脏孤立性坏死结节,进行回顾性研究。结果9例肝脏孤立性坏死结节MSCT诊断准确率为77.8%,表现多为肝内圆形或类圆形低密度肿块,密度均匀,边界较清楚;增强扫描显示病灶实质部分无明显强化,边缘无或轻度强化。病理全部为凝固坏死结节,病变大体直径1.3～4.5cm,切面灰白色或灰黄色,与周围境界清楚。镜下:病变中央为均匀一致、无一定形态结构的坏死性核心,但网状结构保存完好,周边围绕一层透明变性的胶原纤维组织。结论MSCT对肝脏孤立性坏死结节诊断具有重要价值。
Objective To investigate the value of MSCT in the diagnosis of solitary necrotic nodules in liver. Methods Nine cases of solitary necrotic nodules in liver, which were confirmed by operation and pathology, were examined by MSCT plain scan and enhanced scan respectively. Results The accuracy of MSCT in diagnosing solitary and necrotic nodules in 9 cases was 77.8%. Most of them showed intrahepatic or round-like low-density mass with uniform density and clear boundary. The enhancement scan showed no significant enhancement of the real part of the lesion. No or mild enhancement. Pathology of all coagulation necrosis nodules, lesion diameter of 1.3 ~ 4.5cm, section gray or gray, clear with the surrounding realm. Microscope: The center of the lesion is uniform, without any morphological necrosis of the core, but the network structure intact, surrounded by a layer of transparent degeneration of collagen fibers. Conclusion MSCT is of great value in the diagnosis of solitary necrosis of the liver.