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Contrast-enhanced ultrasonography of a primary hepatic carcinosarcoma. A: Contrast-enhanced sonography showed early intense peripheral nodular enhancement in the arterial phase (21 s) with two feeding arteries (arrows); B: Peripheral nodular portion of the tumor was iso-enhancing compared to the surrounding liver in the portal phase (76 s); C: Peripheral nodular portion of the tumor was washed out and was hypo-enhanced compared to the liver in the later phase (191 s).
