TY - GEN AU - Ayman Adly Wassef AU - Ezz Eldein Korashi , AU - George Abdelfady Nashedm , AU - Hatem Mahmoud Helmy , TI - Cholangiocarcinoma : : A study of early diagnostic modalities and their impact on improvement of the prognosis / PY - 2007/// CY - Cairo : PB - Ayman Adly Wassef , KW - Cholangiocarcinoma KW - Diagnostic KW - Management N1 - Thesis (M.Sc.) - Cairo University - Faculty Of Medicine - Department Of General Surgery; Issued also as CD N2 - Cholangiocarcinoma is a malignant tumor that arises from the biliary tree (intrahepatic extrahepatic) .It is a rare malignancy.It is mainly adenocarcinoma and rare to be squamous cell caecinoma ER -