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Sonographic features of hepatic adenomas with pathologic correlation
C H Hung1, C S Changchien, S N Lu
1Division of Gastroenterology, Department of Internal Medicine, Chang Gung Memorial Hospital, 123 Ta Pei Road, Niao Sung 833, Kaohsiung, Taiwan, ROC.
Abdominal Imaging
|August 15, 2001
Summary
Sonography reveals varied hepatic adenoma appearances. Hypoechoic, hyperechoic, and mixed-echoic patterns correlate with simple adenoma, fatty changes, and hemorrhage/necrosis, respectively.
Area of Science:
- Hepatobiliary imaging
- Diagnostic ultrasound
- Gastrointestinal pathology
Background:
- Hepatic adenomas are benign liver tumors with diverse presentations.
- Sonographic evaluation is crucial for characterizing liver lesions.
- Correlation between imaging and histopathology is essential for accurate diagnosis.
Purpose of the Study:
- To compare sonographic features of hepatic adenomas with their corresponding pathologic findings.
- To establish the relationship between specific ultrasound patterns and adenoma characteristics.
Main Methods:
- Retrospective review of 10 years of data from 12 patients with surgically confirmed hepatic adenomas.
- Analysis of clinical, sonographic, and histopathologic findings.
- Comparison of tumor size, echogenicity, and internal features.
Main Results:
- Tumor characteristics differed between sexes; males had smaller, simpler adenomas.
- Larger tumors (>5 cm) often showed mixed-echoic patterns indicative of hemorrhage/necrosis.
- Homogeneously hypoechoic, hyperechoic, and isoechoic patterns correlated with simple adenoma, fatty changes, and specific rim features, respectively.
- Fibrous capsules were often not visualized sonographically.
Conclusions:
- Hepatic adenomas exhibit variable sonographic appearances.
- Specific echogenicity patterns (hypoechoic, hyperechoic, mixed-echoic) can predict underlying pathologic changes like simple adenoma, fatty metamorphosis, or hemorrhagic necrosis.