A case of myomataous type of hepatic angiomyolipoma (AML) that was difficult to differentiate from hepatocellular carcinoma preoperatively

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  • Noma Takayuki
    Department of Digestive and Transplant Surgery, Tokushima University
  • Teraoku Hiroki
    Department of Digestive and Transplant Surgery, Tokushima University
  • Yamada Shinnichiro
    Department of Digestive and Transplant Surgery, Tokushima University
  • Saito Yu
    Department of Digestive and Transplant Surgery, Tokushima University
  • Ikemoto Tetsuji
    Department of Digestive and Transplant Surgery, Tokushima University
  • Morine Yuji
    Department of Digestive and Transplant Surgery, Tokushima University
  • Shimada Mitsuo
    Department of Digestive and Transplant Surgery, Tokushima University

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Other Title
  • 術前に肝細胞癌との鑑別が困難であった筋腫型肝血管筋脂肪腫の1例
  • ジュツゼン ニ カン サイボウ ガン ト ノ カンベツ ガ コンナン デ アッタ キンシュガタ カン ケッカンキン シボウ シュ ノ 1レイ

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Abstract

<p>We describe a case of a woman in her 40s who underwent a medical examination and discovered a 15-cm large mass protruding from her liver. Although her medical history or liver background was unremarkable and tumor markers were normal, contrast-enhanced CT revealed a 15-cm-sized tumor in the right lobe of the liver with an early arterial phase and a washout in the delayed phase. The EOB-MRI revealed the tumor was represented as a defect, and hepatocellular carcinoma was strongly suspected. Given the potential for rupture, TACE was carried out first. An extensive right hepatic lobectomy was then carried out. Histopathological analysis revealed that the tumor was primarily made up of smooth muscle-like cells without any adipocytes, and immunohistochemical staining was positive for Vimentin and αSMA, and HMB-45 and MelanA. Therefore, we determined that the patient has a myomataous type of hepatic angiomyolipoma.</p>

Journal

  • Kanzo

    Kanzo 64 (4), 201-208, 2023-04-01

    The Japan Society of Hepatology

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