Cytoplasmic Staining of TTF-1 Antibody in the   Diagnosis of Hepatocellular Carcinoma: Study on 299 Cases   Using Tissue Microarray

<table>(a) (b) TTF-1 expressed in HCC, inset: high magnification of the cytoplasmic staining; (c) (d) TTF-1 staining in adjacent non-neoplastic hepatic tissue. Bile duct epitheliums, endothelial cells, were negative for TTF-1. Inset: high magnification of the cytoplasm staining (a, c: IHC<span class="inline" id="M4"></span>40; b, d: IHC<span class="inline" id="M5"></span>200).</table>

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Figure 1

Figure 1: Cytoplasmic Staining of TTF-1 Antibody in the   Diagnosis of Hepatocellular Carcinoma: Study on 299 Cases   Using Tissue Microarray 