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Axial late arterial phase DCE-MR images of four pathologically confirmed PD HCCs. The imaging appearances in the arterial phase of different PD HCCs varied, presenting with homogeneous hyperenhancement (a), heterogeneous hyperenhancement with a small area of necrosis (b), heterogeneous hyperenhancement with a large area of necrosis (c), and hyperenhancement in some parts of tumor (d).
