Abstract
Primary carcinosarcoma of the liver is extremely rare. Here, we report an unusual case of carcinosarcoma of the liver containing combined hepatocellular carcinoma and cholangiocarcinoma. A 66-year-old man with a history of viral hepatitis B was admitted for investigation of multiple liver masses. Dynamic computed tomography revealed a mostly hypoenhancing main tumor with a peripheral ring enhancement and several satellite nodules. After transcatheter arterial chemoembolization and portal vein embolization, an extended right posterior sectionectomy was performed. The resected tumor was macroscopically a simple nodular type, 4.3 × 4.2 cm in diameter, with a dense fibrous capsule. The pathological findings showed that both carcinomatous and sarcomatous elements were present, and diagnosis of carcinosarcoma of the liver was confirmed. The carcinomatous element consisted of hepatocellular carcinoma and cholangiocarcinoma. The sarcomatous element was composed of spindle cells. Immunohistochemical studies demonstrated that cytokeratin AE1/AE3, human serum albumin, cytokeratin 7, and Arginase-1 were partially positive in tumor cells of the carcinomatous element but not in tumor cells of the sarcomatous element. Follow-up for 30 months after surgery has shown no signs of recurrence.
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Abbreviations
- CK:
-
Cytokeratin
- HCC:
-
Hepatocellular carcinoma
- CCA:
-
Cholangiocarcinoma
- cHCC-CCA:
-
Combined hepatocellular carcinoma and cholangiocarcinoma
- CT:
-
Computed tomography
- Gd:
-
Gadolinium
- EOB:
-
Ethoxybenzyl
- DTPA:
-
Diethylenetriamine penta-acetic acid
- MRI:
-
Magnetic resonance imaging
- AFP:
-
Alpha-fetoprotein
- DCP:
-
Des-γ-carboxy prothrombin
- CEA:
-
Carcinoembryonic antigen
- CA19-9:
-
Carbohydrate antigen 19 to 9
- ICG-R15:
-
Indocyanine green retention rate at 15 min
- TACE:
-
Transcatheter arterial chemoembolization
- FLR:
-
Future liver remnant
- PVE:
-
Portal vein embolization
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Ofuchi, T., Imai, K., Nakao, Y. et al. A case of primary carcinosarcoma of the liver with combined hepatocellular carcinoma and cholangiocarcinoma. Clin J Gastroenterol 14, 1476–1483 (2021). https://doi.org/10.1007/s12328-021-01469-5
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DOI: https://doi.org/10.1007/s12328-021-01469-5