Cytokeratin profiles and mucin secretion in combined hepatocellular-cholangiocarcinoma. A case report.
A case of a combined hepatocellular-cholangiocarcinoma (HCC-CC) is presented showing mucin production in both the HCC and the CC component. Immunohistochemical staining for cytokeratins 7 and 19 was performed and it is concluded that immunoreactivity for cytokeratin 7 and 19 is an additional criterion to the detection of mucin in making the diagnosis of a combined HCC-CC of the transitional type.