Abstract
Background
The purpose of this study was to clarify the clinicopathologic characteristics and surgical outcomes of patients with the mass-forming (MF) plus periductal infiltrating (PI) type of intrahepatic cholangiocellular carcinoma (ICC).
Methods
Between January 1, 1998, and December 31, 2004, a total of 94 patients with ICC underwent macroscopic curative resection, and the macroscopic type of the tumors was assessed prospectively. Among the 74 patients with the MF type (n = 46) and the MF plus PI type (n = 28) of ICC, multivariate analysis was conducted to identify the potential prognostic factors. The clinicopathologic data of the two groups were compared.
Results
The results revealed two independent prognostic factors: presence/absence of intrahepatic metastasis and the macroscopic type of the tumor. ICCs categorized macroscopically as the MF plus PI type were significantly associated with jaundice (p < 0.001), bile duct invasion (p < 0.001), portal vein invasion (p = 0.025), lymph node involvement (p = 0.017), and positive surgical margin (p = 0.038).
Conclusion
Identification of the macroscopic type of the tumor is useful for predicting survival after hepatectomy in patients with ICC. The MF plus PI type of ICC appears to have a more unfavorable prognosis, even after radical surgery, than the MF type of ICC.
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This study was supported by a Grant-in-Aid for cancer research from the Ministry of Health, Welfare, and Labor of Japan
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Shimada, K., Sano, T., Sakamoto, Y. et al. Surgical Outcomes of the Mass-Forming plus Periductal Infiltrating Types of Intrahepatic Cholangiocarcinoma: A Comparative Study with the Typical Mass-Forming Type of Intrahepatic Cholangiocarcinoma. World J Surg 31, 2016–2022 (2007). https://doi.org/10.1007/s00268-007-9194-0
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DOI: https://doi.org/10.1007/s00268-007-9194-0