Abstract
We report a case of hepatocellular adenoma, focusing on the findings of liver-specific contrast agent-enhanced magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET). The patient was a 37-year-old woman, referred to us after contrast-enhanced computed tomography showed a homogeneous, poorly enhanced liver tumor, 2.8 cm in diameter. Magnetic resonance imaging showed a liver mass with significant fatty change. The tumor increased in size to 3.3 cm over 9 months of follow-up. Gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid-enhanced MRI revealed spotty enhancement in the hypointense tumor in the hepatobiliary phase. Subsequent FDG-PET showed increased uptake of FDG (maximum standardized uptake value 5.0), which suggested the possibility of malignancy. The patient underwent partial hepatectomy, and histological examination of the resected specimen revealed a tumor composed of hepatocyte-like cells with minimal cellular atypia and significant diffuse fatty change. Based on these findings, we diagnosed hepatocellular adenoma.
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Tatsuaki Sumiyoshi and co-authors have no conflict of interest.
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Sumiyoshi, T., Moriguchi, M., Kanemoto, H. et al. Liver-specific contrast agent-enhanced magnetic resonance and 18F-fluorodeoxyglucose positron emission tomography findings of hepatocellular adenoma: report of a case. Surg Today 42, 200–204 (2012). https://doi.org/10.1007/s00595-011-0067-7
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DOI: https://doi.org/10.1007/s00595-011-0067-7