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Hepatocellular adenomas have recently been classified into four subtypes based on molecular findings: hepatocyte nuclear factor 1α (HNF1α) inactivated, inflammatory/telangiectatic, β-catenin activated, and unclassifiable. β-catenin-activated adenomas have the potential for malignant transformation and are thus important to recognize. Diffuse glutamine synthetase immunohistochemical positivity has...
Transcriptional regulation of the TERT gene is a major cause of the cancer-specific increase in telomerase activity. Recently, frequent somatic mutations in the TERT promoter have been described in several tumor entities such as melanoma, glioblastoma, bladder cancer, and hepatocellular carcinoma. By generating a putative consensus binding site for ETS transcription factors within the TERT promoter,...
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