[The importance of immunohistochemistry for the diagnosis of cholangiocarcinomas].
The correct diagnosis of intrahepatic cholangiocarcinoma (CC) is often confounded by the small size of the diagnostic specimen and the wide morphological range of carcinomas metastasising to the liver. Expression analysis of cytokeratins, glycoproteins, mucoproteins, adhesion molecules, receptors and transcription factors has been shown to be a valuable adjunct in the typing of carcinomas. For this study, the expression pattern of 30 well documented antibodies to CC and the most common metastatic adenocarcinomas of the liver were studied. CC show a rather distinct immunophenotype with co-expression of CK7, CK17, CD7 and a lack of CDX2. Although this pattern allows the separation of CC from most metastatic carcinomas, pancreatic carcinomas show a broad overlap with this expression pattern.
Länger
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Institut für Pathologie, Medizinische Hochschule, Carl-Neuberg-Strasse 1, 30625, Hannover. Laenger.Florian@mh-hannover.de
von Wasielewski
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R
Kreipe
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HH
D001650:Bile Duct Neoplasms / Q000473:pathology*; D001653:Bile Ducts, Intrahepatic; D015815:Cell Adhesion Molecules; D018281:Cholangiocarcinoma / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods*; D016130:Immunophenotyping
D015815:Cell Adhesion Molecules