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目的探讨肝结核的CT和MR I表现特点及其鉴别诊断。方法回顾性分析2例经病理证实的肝结核的CT和MR表现特点,并作文献复习。2例肝结核行CT平扫及CT动态增强扫描,1例行MR平扫。结果CT平扫1例呈不均质性低密度,病变内伴有更低密度坏死区,1例接近等密度;CT增强扫描动脉期2例病变均未见明显强化;静脉期及平衡期2例病变轻度强化,其中1例伴有坏死囊变区周边轻微环形强化。1例MR平扫,T1W I呈低信号,T2W I呈等高混杂信号。结论肝结核少见,易误诊,CT及MR I能显示肝结核的一些特征,尤其是动态增强扫描有助于该病的诊断和鉴别诊断。
Objective To investigate the features and differential diagnosis of CT and MRI in liver tuberculosis. Methods Retrospective analysis of 2 cases of pathologically confirmed liver tuberculosis CT and MR features, and for the literature review. 2 cases of liver tuberculosis CT scan and dynamic contrast-enhanced CT, 1 case of MR plain scan. Results CT scan showed heterogeneous low density in 1 case, lesion with lower density and necrosis in 1 case, and equal density in 1 case. No significant enhancement was observed in 2 cases of CT scan in arterial phase. Cases of mild mild enhancement, including 1 case of necrotic cystic area around the ring slightly enhanced. One case of MR plain scan, T1WI was low signal, T2WI was mixed signal of the same height. Conclusions Hepatic tuberculosis is rare and easily misdiagnosed. CT and MR I can show some characteristics of hepatic tuberculosis, especially the dynamic contrast-enhanced scan is helpful to the diagnosis and differential diagnosis of the disease.