Sclerosing hepatic carcinoma: helical CT features
Seong Hyun Kim1, Won Jae Lee, Hyo K Lim
1Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-Dong, Gangnam-Gu, Seoul, 135-710, South Korea.
Abdominal Imaging
|January 5, 2007
Summary
Sclerosing hepatic carcinoma, a rare liver cancer with abundant fibrosis, presents CT features mimicking other malignant tumors. Radiologists should consider this rare diagnosis, particularly in non-cirrhotic livers.
Area of Science:
- Radiology
- Hepatology
- Oncology
Background:
- Sclerosing hepatic carcinoma is a rare malignant hepatic tumor characterized by abundant fibrosis.
- Its imaging features can mimic other liver malignancies, posing diagnostic challenges.
Purpose of the Study:
- To describe the computed tomography (CT) features of pathologically proven sclerosing hepatic carcinoma.
- To highlight the potential for misdiagnosis due to overlapping CT findings with other fibrotic hepatic tumors.
Main Methods:
- Retrospective analysis of four surgically confirmed cases of sclerosing hepatic carcinoma over a 10-year period.
- Detailed review of three-phase helical CT images for each patient.
- Correlation of CT findings with histopathological results.
Main Results:
- Tumors ranged from 2.7 to 11 cm (mean, 7.2 cm).
- CT demonstrated hypoattenuating masses with peripheral rim enhancement in the hepatic arterial phase, progressing to centripetal enhancement in later phases.
- Histopathology revealed features intermediate between hepatocellular carcinoma and cholangiocarcinoma, with significant fibrosis; surrounding liver parenchyma showed no cirrhosis.
Conclusions:
- CT features of sclerosing hepatic carcinoma can resemble other malignant hepatic tumors with abundant fibrosis.
- Radiologists must consider sclerosing hepatic carcinoma in the differential diagnosis of hepatic masses with significant fibrosis, especially in non-cirrhotic livers.
- Early recognition is crucial for appropriate patient management.
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