Abstract
Purpose
To analyze and compare the differences in MRI features between combined hepatocellular carcinoma-cholangiocarcinoma (cHCC-CCA) and intrahepatic cholangiocarcinoma (iCCA) with arterial phase peripheral enhancement, so as to provide valuable references for preoperative differential diagnosis.
Methods
Seventy cHCC-CCA patients and 74 iCCA patients confirmed by pathology were included in this study. Their contrast-enhanced MRI showed rim arterial phase hyperenhancement (Rim APHE). The differences of clinicopathological data and MRI features between cHCC-CCA and iCCA were compared. Then, the sensitivity, specificity, and area under curve (AUC) were also analyzed and compared.
Results
Seventy cHCC-CCA patients (mean age, 55.7 ± 10.6 years) and 74 iCCA patients (mean age, 61.1 ± 10.5 years) were evaluated. In this study, univariable and multivariable regression analysis showed that AFP > 20 ng/ml (OR = 5.824, p = 0.006), enhancing capsule (OR = 7.252, p = 0.001), and mosaic architecture (OR = 32.732, p < 0.001) were independent risk factors of cHCC-CCA with Rim APHE. However, only hepatic capsule retraction (OR = 0.091, p < 0.001) was an independent predictor of iCCA. In addition, combining AFP > 20 ng/ml with enhancing capsule (96.7% vs. 79.2%, p < 0.001) and/or mosaic architecture (96.4% vs. 94.7%, p < 0.001) can improve the sensitivity of differentiating cHCC-CCA (vs. iCCA) with Rim APHE.
Conclusion
The combination of elevated AFP and MRI features, such as enhancing capsule and mosaic architecture, will help in preoperative differential diagnosis of cHCC-CCA and iCCA with Rim APHE.
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Abbreviations
- AFP:
-
Alpha fetoprotein
- CA19-9:
-
Carbohydrate antigen 19-9
- CCA:
-
Cholangiocarcinoma
- CEA:
-
Carcinoembryonic antigen
- cHCC-CCA:
-
Combined hepatocellular carcinoma-cholangiocarcinoma
- HCC:
-
Hepatocellular carcinoma
- iCCA:
-
Intrahepatic cholangiocarcinoma
- Rim APHE:
-
Rim arterial phase hyperenhancement
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Funding
This study was supported by National Science Foundation of China (Grant No. 82171897), Clinical Research Plan of SHDC (Grant No. SHDC2020CR1029B), and Science and Technology Commission of Shanghai Municipality (Grant No. 23Y11907400).
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by CZ and PH. The first draft of the manuscript was written by CZ and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Zhou, C., Huang, P., Wu, F. et al. How to differentiate between combined hepatocellular carcinoma-cholangiocarcinoma and intrahepatic cholangiocarcinoma with rim arterial phase hyperenhancement?. Abdom Radiol (2024). https://doi.org/10.1007/s00261-024-04194-y
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DOI: https://doi.org/10.1007/s00261-024-04194-y