Case Report
Copyright ©2007 Baishideng Publishing Group Co.
World J Gastroenterol. Feb 7, 2007; 13(5): 813-815
Published online Feb 7, 2007. doi: 10.3748/wjg.v13.i5.813
Figure 2
Figure 2  A pigmented malignant tumour evidently infiltrates extrahepatic bile duct. Later histochemical and immunohistochemical analyses showed melanoma cells (HE, × 13).