Difficult Diagnosis of a Patient with a Hypovascular Hepatic Tumor—A Case Report—

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  • 診断に苦慮した肝乏血性腫瘍の1例
  • 症例 診断に苦慮した肝乏血性腫瘍の1例
  • ショウレイ シンダン ニ クリョ シタ カンボウケツセイ シュヨウ ノ 1レイ

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<p>A 64-year-old man was referred to our hospital for further investigation of a growing hepatic tumor of 1.5 cm in diameter that was located in segment 7. It was difficult to make a definite diagnosis of a dysplastic nodule or an early-stage hepatocellular carcinoma by abdominal sonography and enhanced computed tomography. A Gd-EOB-DTPA-enhanced MRI scan showed poor uptake of contrast agent in the hepatobiliary phase, but no signal change at a chemical phase shift. Nevertheless, hepatectomy of the posterior segment was performed because a malignant tumor could not be ruled out. The tumor was an unclear nodule without a coating and was histologically composed of a palisade structure with no atypical or high-density cells. A low-grade dysplastic nodule was diagnosed. Because a patient's liver with alcoholic change tends to have dysplastic nodules, it is very difficult to diagnose them. We think there is some possibility that a fat-containing evaluation such as a chemical phase shift is useful. It is also necessary to perform a comprehensive evaluation based on the diameter of the tumor, the clinical course, and multiple imaging modalities to make a diagnosis.</p>

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