Oncological problems in pancreatic cancer surgery

Table 4 Incidence of pancreatic cancer cells in peripheral blood, bone marrow, and liver tissue

Author	Yr	Incidence
Tada et al[71]	1993	Peripheral blood, K-ras 2/6 (33%)
Juhl et al[72]	1994	Bone marrow, immunostaining: 15/26 (58%)
Inoue et al[73]	1995	Liver tissue, K-ras: 13/17 (76%)
Nomoto et al[74]	1996	Peripheral blood, K–ras: postoperative period10/10 (100%)
Funaki et al[75]	1996	Peripheral blood, CEAmRNA: 3/9 (33%)
Aihara et al[76]	1997	Peripheral blood, Keratin 19m RNA: 2/38 (5%)
Miyazono et al[77]	1999	Peripheral blood, CEAmRNA: 13-21 (61.9%)
Uemura et al[78]	2004	Peripheral blood, K-ras: 9/26 (35%)