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  • Title: Clinicopathological characteristics of 15 patients with combined hepatocellular carcinoma and cholangiocarcinoma.
    Author: Zuo HQ, Yan LN, Zeng Y, Yang JY, Luo HZ, Liu JW, Zhou LX.
    Journal: Hepatobiliary Pancreat Dis Int; 2007 Apr; 6(2):161-5. PubMed ID: 17374575.
    Abstract:
    BACKGROUND: Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is a rare subtype of primary liver cancer, and clinicopathological features of cHCC-CC have seldom been reported in detail. This study was undertaken to explore the diagnosis and clinicopathological characteristics of cHCC-CC in comparison with hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC), respectively. METHODS: The clinical data from 15 patients with cHCC-CC, 132 patients with HCC and 44 patients with CC who had undergone hepatic resection were analyzed retrospectively. Clinicopathological characteristics of cHCC-CC, HCC and CC such as hepatitis B viral infection, serum hepatitis C virus (HCV) antibody, serum alpha-fetoprotein (AFP) level, cirrhosis, vascular invasion, lymph node metastasis, surgical procedure and adjuvant treatment were also analyzed. Follow up was carried out in the patients, and their 1-, 3-, and 5-year survival rates were calculated. RESULTS: Two patients with cHCC-CC were correctly diagnosed by enhanced CT before operation, the other 13 patients were diagnosed by histology and immunohistochemistry after operation. Radical (8/15) and conservative hepatectomy (7/15) for cHCC-CC was similar to that for HCC and CC (P>0.05). Pathologically cHCC-CC showed more significantly vascular invasion and lymph node metastasis than HCC (P<0.05), and a similarity to CC (P>0.05). Hepatitis B viral infection, serum HCV antibody, cirrhosis, and serum AFP level of cHCC-CC patients were similar to those of HCC patients (P>0.05) but different from CC patients (P<0.05). The cumulative 1-, 3-, and 5-year survival rates in patients with cHCC-CC were poorer than in patients with HCC or CC (P<0.05). CONCLUSIONS: Patients with cHCC-CC are seldom diagnosed before operation. The progression of cHCC-CC is more rapid than that of HCC or CC. Survival rate of patients with cHCC-CC after hepatic resection is poorer than that of patients with HCC or CC.
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