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KMID : 1103720120660050443
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Journal of the Korean Society of Radiology
2012 Volume.66 No. 5 p.443 ~ p.450
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Three-Phase CT Findings of Combined Hepatocellular and Cholangiocarcinomas
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Lee Jeong-Eun
Cho Jone-Sik
Shin Kyung-Sook
Ohm Joon-Young
Kang Dae-Young
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Abstract
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Purpose: To evaluate three-phase CT findings of combined hepatocellular and cholangiocarcinomas (cHCC-CCs), with an emphasis on the enhancement pattern.
Materials and Methods: We retrospectively analyzed CT findings in 11 patients with histopathologically proven 11 cHCC-CCs. Three-phase CT findings of cHCC-CCs during the arterial phase (AP), portal venous phase (PVP), and equilibrium phase (EP) were evaluated, based on the morphologic and enhancement pattern.
Results: Two (18%) of all the tumors showed arterial enhancement during the AP and delayed washout during the PVP and EP. Three tumors (27%) showed no arterial enhancement and delayed washout or delayed enhancement during the same phases. The remaining six tumors (55%) showed both arterial enhancement and delayed enhancement during the same phases.
Conclusion: Three-phase CT findings of cHCC-CCs were found to be variable, according to the histologic proportion of HCC or CC components. However, cHCC-CC could be considered when a tumor shows both arterial enhancement and delayed enhancement at three-phase CT.
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KEYWORD
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Liver, Neoplasms , Liver, CT , Hepatocellular Carcinoma , Cholangiocarcinoma
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