Pathology of cholangiocarcinoma
Pathology of cholangiocarcinoma
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DOI:
10.1007/s00261-004-0187-2
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发表时间:
2004-09-01
影响因子:
--
通讯作者:
Park, CK
中科院分区:
文献类型:
--
作者:
Lim, JH;Park, CK
Different classifications using various terminologies have been used to describe the gross appearances and radiologic findings of intra-and extrahepatic cholangiocarcinomas. Eggel [1] classified intrahepatic cholangiocarcinomas as nodular, massive, and diffuse. Rosai [2] classified extrahepatic cholangiocarcinomas into three types: nodular, sclerosing, and polypoid. Weinbren and Mutum [3] classified these as nodular, sclerosing, and papillary. In the radiologic literature, hilar and extrahepatic cholangiocarcinomas are classified as exophytic, infiltrating, and polypoid or papillary [4–6]. The terms sclerosing and infiltrative refer to the same type. However, terminologies such as nodular, massive, exophytic, polypoid, and papillary are ambiguous and confusing.The Liver Cancer Study Group of Japan has proposed a new classification for intrahepatic cholangiocarcinoma as mass-forming, periductal-infiltrating, and intraductal-growing based on their growth characteristics [7]. According to this new classification, the nodular or exophytic type of extrahepatic cholangiocarcinomas matches the mass-forming type, the infiltrating or sclerosing type matches the periductal-infiltrating type, and the polypoid or papillary type matches the intraductal-growing type [8]. The Japanese Society of Biliary Surgery has proposed that extrahepatic cholangiocarcinoma be classified into six types: papillary-expanding, papillary-infiltrating, nodularexpanding, nodular-infiltrating, flat-expanding, and flat-infiltrating [9]. However, this classification is redundant because it can be simplified further. Klatskin [10] recognized three main types of hilar cholangiocarcinoma as seen on laparotomy: a small fibrous nodule, a segmental stenosis, and a papillary growth. In other classifications, extrahepatic cholangiocarcinomas have been categorized as nodular, sclerosing, and papillary by macroscopic appearance [3, 11]. These classifications are based on the gross morphology of