Risk factors influencing recurrence following resection of pancreatic head cancer

Table 1 Histopathological findings in patients died of Recurrence

Operative procedure(No.of patients)	Maximum size					Nodal involvement					Interstitial invasion
	t1	t2	t3	t4		n0	n1	n2	n3		Ii (-)	Ii (+)
D1-	1/5	7/16	10/14	-		3/9	15/26	-	-		6/13	12/22
D2+	0/4	3/9	3/5	3/3		0/6	2/7	4/5	3/3		1/5	8/16

Table 2 Comparision of tumor Size, nodal involvement and interstitial invasion between two groups

Operative procedure(No.of patients)	Maximum size					Nodal involvement					Interstitial invasion
	t1	t2	t3	t4		n0	n1	n2	n3		Ii (-)	Ii (+)
D1-	5	16	14	-		9	26	-	-		13	22
D2+	4	9	5	3		6	7	5	3**		2	19

*5 is positive also in n1, **3 is also positive in n1,and n2.