Distribution of solitary lymph nodes in primary gastric cancer: A retrospective study and clinical implications

Table 1 Distribution of metastatic lymph nodes (cases)

	L tumors			M tumors			U tumors
	SN1	SSN2	P value	SN1	SSN2	P value	SN1	SSN2	P value
No.1	2	0	-3	2	2	NS	3	3	NS
No.2	1	0	-	0	0	-	1	5	NS
No.3	13	11	NS4	10	1	NS	1	6	NS
No.4	4	9	NS	5	1	NS	0	2	NS
No.5	4	3	NS	1	1	-	0	0	-
No.6	19	21	NS	1	2	NS	0	3	NS
No.7	4	5	NS	6	3	NS	1	1	-
No.8	3	1	-	1	0	-	1	0	-
No.9	1	0	-	0	1	-	0	1	-
No.10	0	0	-	2	0	-	0	1	-
No.11	1	0	-	0	0	-	0	1	-
No.12	0	0	-	0	1	-	0	0	-
TOTAL	52	50	-	28	12		8	23

No.2, left paracardial node; No.4, greater curvature node; No.5, superior pyloric node; No.8, common hepatic node; No.9, celiac artery node; No.11, splentic artery node; No.12, hepatodudenal node.

¹Solitary metastatic node;

²Single station metastatic node;

³Differences of the frequency distributions between the two groups were not determined;

⁴Not significant.

Table 2 Distribution of solitary metastatic lymph nodes according to transversal zoning (cases)

	L tumors			M tumors		U tumors
	A1	B2	C3	A1	B2	A1	B2
No.1	0	2	0	1	1	1	2
No.2	0	0	1	0	0	0	1
No.3	3	9	1	0	10	0	1
No.4	2	2	0	3	2	0	1
No.5	1	2	1	0	1	0	0
No.6	7	9	3	1	0	0	0
No.7	1	2	1	1	5	0	1
No.8	0	3	0	0	1	0	1
No.9	1	0	0	0	0	0	0
No.10	0	0	0	2	0	0	0
No.11	0	0	1	0	0	0	0

¹Tumors located at the greater curvature;

²Tumors located at the lesser curvature;

³Tumors extended in a circle of the stomach.

Table 3 Histological type and skipping metastasis (cases)

	Group N1	Group > N1	P value
L tumors			0.192
Differentiated	22	4
Undifferentiated	18	8
M tumors			0.299
Differentiated	3	3
Undifferentiated	16	6
U tumors			1.000
Differentiated	3	1
Undifferentiated	3	1
Total			0.489
Differentiated	28	8
Undifferentiated	37	15

Table 4 Histological growth pattern and skipping metastasis (cases)

	Group N1	Group > N1	P values
L tumors			0.087
Massive	8	3
Nest	21	3
Diffuse	11	6
M tumors			0.456
Massive	2	2
Nest	8	2
Diffuse	9	5
U tumors			0.645
Massive	1	1
Nest	2	0
Diffuse	3	1
TOTAL			0.051
Massive	11	6
Nest	31	5
Diffuse	23	12

Table 5 Histological type and transversal metastasis (cases)

	TN1	AN2	P values
L tumors			0.793
Differentiated	8	11
Undifferentiated	7	8
M tumors			0.426
Differentiated	0	3
Undifferentiated	3	13
U tumors			0.114
Differentiated	0	3
Undifferentiated	2	1
Total			0.793
Differentiated	8	17
Undifferentiated	12	22

¹Transversal metastatic nodes;

²Adjacent metastatic nodes.

Table 6 Histological growth pattern and transversal metastasis (cases)

	TN1	AN2	P values
L tumors			0.513
Massive	6	2
Nest	5	11
Diffuse	4	6
M tumors			0.453
Massive	0	2
Nest	2	6
Diffuse	1	8
U tumors			0.687
Massive	1	0
Nest	1	1
Diffuse	1	2
TOTAL			0.863
Massive	7	4
Nest	8	18
Diffuse	6	16

¹Transversal metastatic nodes;

²Adjacent metastatic nodes.