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- W2337506121 abstract "Multistep hepatocarcinogenesis progresses from dysplastic nodules to early hepatocellular carcinoma ( eHCC ) and to advanced HCC . The aim of the present study was to investigate the detailed histopathological features of eHCC . We investigated 66 small vaguely nodular lesions resected from 40 patients. The degree of cellular and structural atypia and stromal invasion were assessed. The immunohistochemical expression of HCC ‐related markers adenylate cyclase‐associated protein 2 ( CAP 2), heat shock protein 70 ( HSP 70), Bmi‐1, CD 34 and h‐caldesmon were evaluated. Of the 66 nodules, 10 were diagnosed as low‐grade dysplastic nodules ( LGDN ), 10 as high‐grade dysplastic nodules ( HGDN ) and 46 as eHCC . Among the 46 eHCC , 18 nodules (39.1%) showed marked stromal invasion and/or the presence of the scirrhous component and were subclassified as high‐grade eHCC ( HG e HCC ). The remaining 28 eHCC , which lacked these features, were subclassified as low‐grade eHCC ( LG e HCC ) and were examined further. HG e HCC showed high levels of cellular and structural atypia and large tumor size. The immunohistochemical expression of CAP 2 and the area of sinusoidal vascularization showed increases from LGDN to HG e HCC . The density of arterial tumor vessels was high in HG e HCC compared with other nodule types. Cluster analysis of these parameters subclassified 65 nodules into HG e HCC ‐dominant, LG e HCC and HGDN ‐dominant, and LGDN ‐dominant groups. These results indicate the increased malignant potential of HG e HCC and suggest that it is already a transitional stage to advanced HCC . We consider that our grading classification system may be valuable for considering treatment strategies for eHCC around 2 cm in diameter." @default.
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- W2337506121 date "2016-03-18" @default.
- W2337506121 modified "2023-10-14" @default.
- W2337506121 title "Early hepatocellular carcinoma with high‐grade atypia in small vaguely nodular lesions" @default.
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- W2337506121 doi "https://doi.org/10.1111/cas.12893" @default.
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