Hepatic Angiomyolipoma Mimicking Primary Hepatocellular Carcinoma

Min Seok Han; Jun Yong Park

doi:10.4166/kjg.2016.68.5.284

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Han and Park: Hepatic Angiomyolipoma Mimicking Primary Hepatocellular Carcinoma

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Korean J Gastroenterol 2016;68(5):284-287.

Published online: 4 October 2016

DOI: https://doi.org/10.4166/kjg.2016.68.5.284

Hepatic Angiomyolipoma Mimicking Primary Hepatocellular Carcinoma

Min Seok Han, Jun Yong Park

Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea

Correspondence to: Jun Yong Park, Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea. Tel: +82-2-2228-1988, Fax: +82-2-393-6884, E-mail: DRPJY@yuhs.ac

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

References

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Fig. 1.

Liver dynamic CT showed a hypervascular mass (arrows) with a size of 2.5 cm at the second hepatic segment. (A) In the arterial phase, strong contrast enhancement with central low density was observed. (B) In the portal phase, the tumor had almost washed out the contrast agent, but weak contrast enhancement still remained.

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Fig. 2.

Liver magnetic resonance image reveals a capsulated mass (arrows) with a size of 2.5 cm. The mass shows low signal in the T1-weighted image (A), intermediate signal in the T2-weighted image (B), high enhancement at the arterial phase (C), and iso-signal in the diffusion-weighted image (D).

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Fig. 3.

After left lateral segmentectomy, specimen contained a round-shaped encapsulated mass with a size of 2.5 cm, which was well-demarcated around the tissue.

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Fig. 4.

Pathologic findings show a well-defined mass (A; H&E, ×100) that consisted of blood vessel, smooth muscle, and epitheloid cell (B; H&E,×200). Immunohistochemisty was positive for HMB-45 (C; ×200) and actin (D; ×200), and negativity for hepatocyte (E; ×200).

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