The prognosis of perihilar cholangiocarcinoma (CC) is limited by tumor spread along
the biliary tree leading to refractory obstructive cholestasis, cholangitis, and liver
failure. Palliation with biliary endoprostheses yields median survival times between
4 and 6 months for nonresectable CC. Tumor ablation with photodynamic therapy (PDT)
combined with biliary stenting reduces cholestasis and significantly improves median
survival time to 11.5 to 16.2 months. PDT with porfimer and laser light of 630 nm
provides tumoricidal tissue penetration to a depth of only 4 to 4.5 mm that does not
eradicate most tumors. Time to progression lasts approximately 6 months; in other
words, PDT is required twice annually. PDT costs less and enhances quality of life
and survival time as compared with chemotherapy for metastatic colon cancer. These
data suggest that PDT should be offered as part of the palliative treatment of CC
in hepatobiliary referral centers.
Bile duct cancer - cholangiocarcinoma - hematoporphyrin derivative - photodynamic
therapy - photosensitizer - porfimer sodium