摘要
目的探讨肝脏囊虫感染的影像学特征。方法搜集8例患者临床及影像学资料,分析病灶分布、数量、大小、形态、密度/信号、强化方式及胆管扩张、脾大、淋巴结肿大、腹腔积液等影像学特点。结果8例均为多发病灶,4例累及肝脏多叶,呈"簇样"不规则圆形/类圆形、结节状或蜂窝样表现,沿门静脉走行为主分布于肝脏深部或包膜下近肝表面,最大径约3.5~7.8 cm。CT平扫为多房囊样低密度,边界清或不清,2例见细点状"靶征",增强扫描门静脉期呈"蜂窝样"强化;MR呈"多房状"/片状长/稍长T2、T1信号,2例见"靶征",扩散加权成像(DWI)以高信号为主,3例见稍短T1信号,5例病灶外缘见短T2信号环(完整或不完整),2例肝包膜局部增厚、凹凸不平并强化,1例肝内胆管稍扩张,5例病灶呈"蜂窝样"强化,2例见"轨道征",4例淋巴结肿大,1例脾稍大,2例少许腹腔积液。结论肝脏囊虫感染少见,CT和MRI特征结合相关临床资料,有助于该疾病的诊疗。
Objective To investigate the imaging characteristics of hepatic cysticercosis infection.Methods Clinical and imaging data of 8 patients were collected to analyze the distribution,number,size,shape,density/signal,enhancement mode and cholangiectasis,splenomegaly,abdominal lymphadenopathy,seroperitoneum,etc.Results Multiple lesions of hepatic cysticercosis infection were detected in all 8 patients.In 4 cases,several hepatic lobes were involved and the lesions were located deeply or peripherallyalong the portalvein.Imaging showed"Flower clusters"like irregular round/quasi-round,nodular or honeycomb,with maximum diameter ranging from 3.5 to 7.8 cm.CT plain scan showed low density of multilocular cysts,with clear or unclear boundary.2 cases showed"target sign".All lesions showed inhomogeneous"honeycomb-like"enhancement on the portal vein phase.On MR scanthey were hyperintense/slightly hyperintenseon T2WI and hypointense/slightly hypointenseon T1WI,and 2 cases showed"target sign".DWI was given priority with high signal.On T1WI,hyperintense lesions were observed in 3 cases.5 cases showed low intensity circles(complete or incomplete)on T2WI.In 2 cases,the liver capsule was locally thickened,uneven and enhanced.1 casehad cholangiectasis.5 cases showed inhomogeneous enhancement on portal vein phase and presented"honeycomb-like",and"track sign"enhancement in 2 cases.4 cases had abdominal lymphadenopathy,1 had concomitant splenomegaly and 2 had seroperitoneum.Conclusion Liver cysticercosis infection is rare,and CT and MRI features combined with relevant clinical data are helpful for the diagnosis and treatment of this disease.
作者
曾小敏
何波
高茜
陈伟
严俊
杞天付
朱红丽
ZENG Xiaomin;HE Bo;GAO Qian(Department of Medical Imaging,The First Affiliated Hospotal of Kunming Medical University,Kunming,Yunnan Province 650032,P.R.China)
出处
《临床放射学杂志》
北大核心
2021年第2期282-286,共5页
Journal of Clinical Radiology
关键词
肝脏感染
寄生虫
体层摄影术
X线计算机
磁共振成像
Hepatic infection
Parasitosis
Tomography,X-ray computed
Magneticresonance imaging
