Imaging findings and pathological comparison of hepatic angiosarcoma
10.3969/j.issn.1002-1671.2024.10.014
- VernacularTitle:肝脏血管肉瘤的影像表现及病理对照
- Author:
Sudan WANG
1
;
Wenyan SONG
;
Yanyan ZHANG
;
Chen SHAO
;
Sujun ZHENG
Author Information
1. 首都医科大学附属北京佑安医院放射科,北京 100069
- Keywords:
hepatic angiosarcoma;
computed tomography;
magnetic resonance imaging;
pathology
- From:
Journal of Practical Radiology
2024;40(10):1641-1644
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the imaging manifestations and pathological basis of hepatic angiosarcoma(HAS).Methods The CT and MRI findings of 12 patients with HAS confirmed by pathology were analyzed retrospectively and compared with pathological findings.Results Based on morphological classification,the 12 cases of HAS were categorized into three types:massive patterns(n=3),mixed patterns of mass with nodules(n=2),and diffuse infiltration patterns(n=7).Hemorrhage was observed in 9 cases,and necrosis was present in all 12 cases.The massive patterns exhibited peripheral or nodular,patchy,annular,and cord-like enhancement patterns during the arterial phase,with increasing enhancement during the portal and delayed phases.The mixed patterns of mass with nodules demonstrated mild enhancement around the margin or in patchy and spotty structures during the arterial phase,progressing to expansive enhancement during the portal and delayed phases.Four of the seven diffuse infiltration patterns presented with mesh enhancement during the arterial phase,which expanded and became diffuse during the portal phase,accompanied by progressively enlarged enhancing nodules.In the delayed phase,the lesions were fused.The other three cases showed diffuse nodular enhancement during the arterial phase followed by increased enhancement during both portal phase and delayed phase.Regardless of subtype,focal fusion occurred during the delayed phase when multiple intrahepatic lesions were present,and the hemorrhagic and necrotic parts did not enhance.Conclusion The imaging characteristics of HAS include heterogeneous and progressive enhancement,often accompanied by hemorrhage,cystic change,and necrosis.
