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β-Catenin Activated Hepatocellular Adenoma: A Report of Three Cases in Korea

机译:β-连环蛋白激活的肝细胞腺瘤:韩国三例报道

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摘要

Hepatocellular adenoma (HCA) is an uncommon benign hepatic tumor, and the use of oral contraceptives is known to contribute to the development of HCA. Recently, a genotype and phenotype classification system for HCA was suggested, and malignant transformation to hepatocellular carcinoma (HCC) was shown to be strongly associated with activating mutations in β-catenin. Here, we report three cases of HCA in Korean patients: 7-cm, inflammatory and β-catenin-activated HCA with HCC transformation in a 46-year-old man; 13-cm, β-catenin-activated HCA with cytological atypia in a 23-year-old woman; and 10-cm, pigmented, inflammatory and β-catenin-activated HCA in a 36-year-old man. All cases exhibited the nuclear expression of β-catenin and diffuse cytoplasmic expression of glutamine synthetase upon immunohistochemical staining. All tumors were completely resected, and the patients were followed for 3 to 6 years with no evidence of local recurrence or metastasis.
机译:肝细胞腺瘤(HCA)是一种罕见的良性肝肿瘤,已知使用口服避孕药可促进HCA的发展。最近,有人提出了HCA的基因型和表型分类系统,并且向肝细胞癌(HCC)的恶性转化与β-catenin的激活突变密切相关。在这里,我们报道了三例韩国患者的HCA:一名46岁男性中7厘米,炎症性和β-catenin激活的HCA伴HCC转化;一名23岁女性的13厘米,β-catenin激活的HCA伴有细胞学异常。以及一名36岁男性的10厘米,色素沉着,炎性和β-连环蛋白激活的HCA。免疫组化染色均显示β-catenin的核表达和谷氨酰胺合成酶的弥漫性胞浆表达。所有肿瘤均被完全切除,并且对患者进行了3至6年的随访,没有局部复发或转移的迹象。

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