Detection of K-ras point mutation and telomerase activity during endoscopic retrograde cholangiopancreatography in diagnosis of pancreatic cancer

Table 1 Location of pancreatic cancer and K-ras mutation or telomerase activity

Location	n	K-ras mutation		Telomerase activity
		(+)	%	(+)	%
Head	11	8	72.7	9	81.8
Body	3	2	66.7	2	66.7
Tail	1	1	100	1	100
Diffuse	3	2	66.7	2	66.7
Totol	18	13	72.2	14	77.8

Table 2 Comparison of K-ras point mutations and telomerase activity

	K-ras mutation	Telomerase	Both
Pancreatic cancer (n=18)	13	14	12
Chronic pancreatitis (n=3)	1	0	0
Sensitivity (%)	72.2	77.8	66.7
Specificity (%)	66.7	100	100