Micrometastasis in surrounding liver and the minimal length of resection margin of primary liver cancer

Table 2 Distribution of micrometastases in surrounding liver of 178 cases of primary liver cancer without macroscopic tumor thrombi or macrosatellites

	Retrospective group (120 cases)			Prospective group (58 cases)
Distance(mm)	Cases	Percent	Accumulativepercent	Cases	Percent	Accumulativepercent
0	94	78.3	78.3	35	60.3	60.3
1	9	7.5	85.8	8	13.8	74.1
2	10	8.3	94.2	4	6.9	81
3	2	1.7	95.8	6	10.3	91.4
4	4	3.3	99.2	3	5.2	96.6
5	1	0.8	100.0	2	3.4	100.0