CT manifestations of perivascular epithelioid cell tumor of liver and kidney
10.13929/j.issn.1672-8475.2025.04.005
- VernacularTitle:肝肾血管周上皮样细胞肿瘤CT表现
- Author:
Yuanyuan ZHANG
1
;
Sikui WANG
;
Hongyan ZHNAG
;
Yanbang LIAN
;
Yuanwei PAN
;
Zhenwei LU
;
Jianbo GAO
;
Junqiang DONG
Author Information
1. 郑州大学第一附属医院放射科,河南郑州 450052
- Publication Type:Journal Article
- Keywords:
liver neoplasms;
kidney neoplasms;
perivascular epithelioid cell neoplasms;
tomography,X-ray computed
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(4):251-254
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore CT manifestations of perivascular epithelioid cell tumor(PEComa)of liver and kidney.Methods Totally 18 hepatic PEComa and 5 renal PEComa confirmed by surgical pathology were retrospectively enrolled,and the preoperative CT manifestations were explored.Results Single lesion of liver or kidney was found in all 23 cases,and the main CT manifestations included low or slightly low density lesion(23/23,100％),with irregular morphology(16/23,69.57％),clear boundaries(17/23,73.91％),non-envelope(21/23,91.30％)and enhancement after administration of contrast agents(21/23,91.30％).Among 18 cases of liver PEComa,most lesions(13/18,72.22％)presented as uniform density,while some(5/18,27.88％)presented as non-uniform density lesions often contained with fat components(5/5,100％)and thickened blood vessels(4/5,80.00％)but rare hemorrhagic necrosis(1/5,20.00％)nor calcification(0/5,0).Fast in and fast out of contrast agents were observed in 16(16/18,88.89％)lesions.Uneven density and internal fat components were found in all 5(5/5,100％)renal PEComa,which rarely with hemorrhagic necrosis(1/5,20.00％),blood vessels orientation(1/5,20.00％)and calcification(0/5,0).After enhancement,fast in and fast out,progressive enhancement and non-enhancement was observed in 2(2/5,40.00％),1(1/5,20.00％)and 2(2/5,40.00％)cases,respectively.Conclusion CT manifestations of PEComa in liver and kidney had certain characteristics.
