Hepatic Angiomyolipoma Mimicking Malignancy : A Case Report

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Hepatic angiomyolipoma (AML) is an uncommon benign mesenchymal tumor of the liver. Most AMLs of the liver are asymptomatic and are discovered incidentally, but the diagnosis remains difficult. We report a case of a 33-year-old woman who had an abdominal mass and in whom diagnosis remained unidentified after imaging and needle biopsy. On dynamic CT, a heterogeneous enhanced hepatic lesion was revealed in the arterial phase with washout in the portal phase. On MRI, it was shown as a hypointense tumor on T1 weighted images and hyperintense on T2 weighted images. Because hepatocellular carcinoma was suspected as a result of the needle biopsy, hepatic segmentectomy was performed. The final pathological diagnosis was AML due to positive HMB45. AML needs to be considered as a condition that may display the atypical images consistent with liver tumor. In cases such as this, we should request the examination of immunohistochemical staining especially for HMB45 on biopsy specimens.

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  • 日大醫學雜誌  

    日大醫學雜誌 67(4), 238-241, 2008-08-01 

    NIHON UNIVERSITY MEDICAL ASSOCIATION

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各種コード

  • NII論文ID(NAID)
    10021952294
  • NII書誌ID(NCID)
    AN0018408X
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • 雑誌種別
    大学紀要
  • ISSN
    00290424
  • NDL 記事登録ID
    9620969
  • NDL 雑誌分類
    ZS7(科学技術--医学)
  • NDL 請求記号
    Z19-263
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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