CT and MRI Manifestations of Hepatic Inflammatory Myofibroblastic Tumors
Objective To investigate CT and MRI manifestations and pathologic correlation of hepatic inflammatory myofibroblastic tumor.Methods The imaging and clinical material with pathologically proven HIMT of 20 cases were reviewed retrospectively.The imaging and pathological characteristics of HIMT were analysed.Results 20 cases showed different degrees of organized necrosis,fibrous tissue and inflammatory cells infiltration pathologically.11 cases located on right lobe of the liver and 9 cases on the left lobe.13 cases located on the edge of liver or under hepatic capsule.16 cases showed low density on pre-contrast CT and 1 case showed isodensity.On T1WI,13 cases showed hypointense or slight hypointense and 1 case showed isointense.All cases showed hyperintensity or slight hyperintensity on T2WI.11 cases showed hyperintensity or slight hyperintensity on DWI.4 cases had lowerT1WI and higher T2WI in their center.20 cases all showed delayed enhancement in portal and delayed phase.The manifestations of enhancement were diverse in portal and delayed phase:ring-like enhancement(15 cases),septal enhancement(3 cases),entire enhancement(3 cases),Thick-torus-wall & Central-dot sign(4 cases),"portal vein floating"sign(4 cases).Conclusion HIMT often occurs on the edge of liver or under hepatic capsule.HIMT usually shows delayed enhancement on post-contrast phase.Ring-like enhancement and portal vein floating"sign contribute to the diagnosis and differential diagnosis of HIMT.
NETL
NSTL
万方数据
