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(A) β-HCA showing a clonal proliferation of atypical hepatocytes of small size and increased N/C ratio, organized in a compact growth (*), pushing apart not lesional hepatocytes (**) (H&E stain, ×100); (B) lesional as opposed to not lesional hepatocytes show strong and diffuse cytoplasmic GS staining and focal nuclear β-catenin immunoreactivity (inset) (GS stain, ×100) (inset: β-catening stain, ×400).
