Table 1. Comparison of Immunohistochemical Findings.

Antibodies	Cancer cells in		Intrahepatic bile duct epithelium
	Colon	Liver
CK7	Negative (Fig. 6c)	Negative (Fig. 5c)	Positive (Fig. 5c)
CK17	Positive	Positive (partial)	Positive (partial)
CK19	Positive	Positive (partial)	Positive
CK20	positive (partial) (Fig. 6d)	Negative (Fig. 5d)	Negative (Fig. 5d)
CDX2	Positive (Fig. 6a)	Positive (Fig. 5a)	Negative (Fig. 5a)
MUC-5AC	Negative	Negative	Negative
MUC2	Negative	Negative	Negative
P53	Positive (Fig. 6b)	Positive (Fig. 5b) (Fig. 7a)	Negative
CA19-9	Negative	Negative (Fig. 7c)	Positive (Fig. 7c)
MIB-1 positive rate	50%	30% (Fig. 7b)	0% (Fig. 7b)