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Surg Today. 2011 Jun;41(6):881-3. doi: 10.1007/s00595-010-4344-7. Epub 2011 May 28.

Pigmented hepatocellular adenoma: report of a case.

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  • 1Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.

Abstract

Hepatocellular adenoma is a rare, benign neoplasm that is related to the use of contraceptives or androgenic-anabolic steroids. A 51-year-old man with no history of steroid use was found to have a liver tumor. Plain computed tomography showed a high-density tumor that was enhanced in the arterial phase, and the enhancement was prolonged in the delayed phase. Magnetic resonance imaging showed that the tumor was hyperintense on in- and opposed-phase T1-weighted gradient recalled echo images and hyperintense on T1-weighted spin echo images. A partial hepatic resection was performed. A histological examination revealed normal hepatocyte-like tumor cells, composed of abundant dark brown granules of Dubin-Johnson-like pigment, which stained positively for Masson-Fontana stain. The tumor was diagnosed to be a very rare hepatocellular adenoma with the deposition of Dubin-Johnson-like pigment.

PMID:
21626342
[PubMed - indexed for MEDLINE]
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