Correlation analysis of CT and MRI findings and pathological features of hepatic perivascular epithelioid cell tumor
SHEN Meiling
GUO Xuejun
Abstract：Objective To investigate the CT and MRI findings and pathological features of hepatic perivascular epithelioid cell tumor(PEComa)so as to improve diagnostic accuracy.Methods The imaging data of 8 cases confirmed as hepatic PEComa were analyzed retrospectively,including the lesion morphology and its internal imaging features and contrast enhance-ment characteristics.And then,a correlation analysis with pathology and review of relevant literatures were conducted.Results A total of 8 cases(100％)with hepatic PEComa had single lesions,of which 7 cases(87.5％)had well-defined margins,with an average of 4.5cm in size,and 4 cases(50.0％)had Internal heterogeneity,and fat components were shown in 4 cases(50.0％).Among them,2 cases(25.0％)contained a lot of fat,5 cases(62.5％)showed vascular malformation,and bleed-ing,necrosis or calcification was not shown in all of 8 cases(100％).The enhancement pattern was"rapid-filling and rapid-washout"in 4 cases(50.0％),"rapid-filling and slow-washout"in 2 cases(25.0％)and"continuous enhancement"in 2 cases(25.0％),respectively.Conclusion Hepatic PEComa is common in women,and most of them have single lesion.CT and MRI images show well-defined margins,internal heterogeneity,or fat-containing and malformed blood vessels,and various en-hancement pattern.
Keywords：Hepatic perivascular epithelioid cell tumorsTomographyX-ray computedMagnetic resonance imagingPathology
Publication Date：2024-01-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 57-61 )