Table 3.

Concordance and discordance between the number of mutations detected in plasma and primary tumor DNA at the time of initial diagnosis

Primary tumor versus plasma at the time of diagnosis
Patient	Disease	Tumor tissue DNA mutations detected in plasma samples	Plasma sample DNA mutations not detected in tumor tissues	Cancer cells in tumor
1	colon AC	60% (3/5)	79% (11/14)	50%
2	colon AC	0% (0/5)	100% (5/5)	70%
3	colon AC	0% (0/1)	100% (13/13)	90%
4	colon AC	75% (3/4)	77% (10/13)	70%
5	colon AC	100% (3/3)	0% (0/3)	90%
average		47%	71.2%	74%
6	PDAC	25% (1/4)	92% (11/12)	30%
7	PDAC	33% (1/3)	89% (8/9)	40%
8	PDAC	33% (1/3)	86% (6/7)	50%
9	PDAC	0% (0/3)	100% (8/8)	50%
10	PDAC	50% (3/6)	25% (1/4)	40%
average		28.2%	78.4%	42%

AC= adenocarcinoma; PDAC= pancreatic ductal adenocarcinoma