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Journal of the Korean Liver Cancer Study Group 2003;3(1):61-64.
Published online July 31, 2003.
A Case of Focal Nodular Hyperplasia
Beom Jin Kim1, Moon Seok Choi1, Joon Hyeok Lee1, Kwang Cheol Koh1, Seung Woon Paik1, Byung Chul Yoo1, Won Jae Lee2, Cheol Keun Park3
1Department of Internal Medicine, Sungkyunkwan University School of Medicine
2Department of Radiology,Sungkyunkwan University School of Medicine
3Department of Pathology, Sungkyunkwan University School of Medicine`
Correspondence:  Beom Jin Kim,
Email: im013@naver.com
Abstract
Focal nodular hyperplasia (FNH) of the liver is a rare benign lesion characterized by nodular hyperplasia of hepatic parenchyma around a central stellate area of fibrosis associated with an anomalous artery. The histological feature of FNH is dominated by a progressive fibrotic process. In the present report, we described a 2.2×2.1 cm sized asymptomatic lesion of FNH observed in a 47-year-old woman with hepatitis B healthy carrier. This lesion was disclosed by various imaging procedures. Under the clinical impression of hepatocellular carcinoma a right. lobe subsegmentectomy was performed. The mass was firm and showed yellow-brownish color and septal fibrosis. It was accompanied with marginal ductal proliferation. These results were consistent with the typical observations in FNH. It also showed small stellate scar with radiating thin fibrous band and formation of small parenchymal nodules. We report a case of FNH of the liver difficult to differentiate hepatocellular carcinoma.
Key Words: Focal nodular hyperplasia; Septal fibrosis; Hepatocellular carcinoma
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