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Primary hepatic angiosarcoma: findings at CT and MR imaging
Takashi Koyama1, Joel G Fletcher, C Daniel Johnson
1Department of Diagnostic Imaging and Nuclear Medicine, School of Medicine, Kyoto University, Japan.
Radiology
|February 28, 2002
Summary
Primary hepatic angiosarcoma presents diverse imaging features, including nodules, masses, and infiltrative lesions. These findings on CT and MR imaging aid in diagnosis and understanding this rare liver cancer.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Primary hepatic angiosarcoma is a rare and aggressive malignancy.
- Accurate cross-sectional imaging is crucial for diagnosis and management.
Purpose of the Study:
- To describe the cross-sectional imaging findings of primary hepatic angiosarcoma.
- To correlate imaging characteristics with pathological confirmation.
Main Methods:
- Retrospective review of CT and MR imaging in 13 pathologically confirmed cases.
- Radiologists evaluated lesion characteristics, enhancement patterns, and clinical features.
Main Results:
- Hepatic angiosarcoma appeared as multiple nodules, dominant masses, or diffuse infiltration.
- Nodules were hypoattenuating; masses showed heterogeneous enhancement on CT and MR.
- Associated clinical features included splenic metastases, thrombocytopenia, DIC, and hemolytic anemia.
Conclusions:
- Primary hepatic angiosarcoma displays a range of imaging appearances.
- Imaging findings reflect the tumor's diverse pathological features.