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Hypervascular well-differentiated HCC. A CTAP (left) shows an entirely hypodense nodule (arrow). It demonstrates hyperdensity on early phase of CTHA (middle, arrow) and thin corona enhancement on late phase of CTHA (right, arrow). B Double immunohistochemical staining of the boundary between the tumor and liver parenchyma shows abundant communications between intratumoral blood sinusoids and hepatic sinusoids (×100).
