Distribution of splenic artery lymph nodes and splenic hilar lymph nodes

Table 1 Characteristics of cadavers

Case No.	1	2	3	4	5	6
Age (yr)	75	81	79	96	99	85
Sex	Male	Male	Male	Female	Female	Female
Weight (kg)	38	59	40	41	30	42
Cause of death	Bronchial pneumonia	DIC	Pneumonia	Senility	Senility	Liver failure
Patient history	Lung cancer	Miliary tuberculosis,post-CABG surgery	NA	Breast cancer, Melanoma	NA	Liver cancer, hepatic cirrhosis

DIC: Disseminated intravascular coagulation; CABG: Coronary artery bypass graft; LN: Lymph node; NA: Not available.

Table 2 Distribution of No. 10 and No. 11 lymph nodes

	Case No.
	1	2	3	4	5	6	Avg. (LN/case)	Avg. (LN/slice)
No. 10
No. of slices	0	18	4	18	19	5
Anterior nodes	NA	40	3	12	12	2	11.5	1.08
Posterior nodes	NA	25	4	6	29	0	10.7	1.00
No. 11
No. of slices	52	51	44	31	43	66
Anterior nodes	31	94	61	20	36	77	53.2	1.23
Posterior nodes	8	10	19	7	10	14	11.3	0.26

The distribution of No. 10 and 11 lymph nodes (LNs) in each cadaver is shown. The number of LNs on the anterior and posterior sides and the number of microslides studied are also shown. No. 10, No. 10 LNs; No. 11, No. 11 LNs; No. of slices: Number of microslides; Avg. (LN/case): Mean number of LNs per case; Avg. (LN/slice): Mean number of LNs per microslide. LN: Lymph node; NA: Not available.

Table 3 Distribution of No. 11p and 11d lymph nodes

	Case No.
	1	2	3	4	5	6	Avg. (LN/case)	Avg. (LN/slice)
No. 11p
No. of slices	14	27	15	9	16	33
Anterior nodes	14	52	20	8	21	52	27.8	1.46
Posterior nodes	2	6	2	1	5	6	3.7	0.19
No. 11d
No. of slices	38	24	29	22	27	33
Anterior nodes	17	42	41	12	15	25	25.3	0.88
Posterior nodes	6	4	17	6	5	8	7.7	0.27

The distribution of No. 11p and 11d lymph nodes (LNs) in each cadaver is shown. We also noted the number of LNs on the anterior and posterior sides, the number of vessels, and the number of microslides. No. 11p, No. 11p LNs; No. 11d, No. 11d LNs; No. of slices: Number of microslides; Avg. (LN/case): Mean number of LNs per case; Avg. (LN/slice): Mean number of LNs per microslide.

Table 4 Number of lymph nodes per microslide

	No. 11p	No. 11d	No. 10
Anterior node	1.46	0.88	1.08
Posterior node	0.19	0.27	1.00
	→		Hilar side

The number of No. 11p, 11d, and 10 lymph nodes per microslide is shown.

Table 5 Posterior/anterior lymph node ratio

Lymph node		Case No.
		1	2	3	4	5	6	Total
↓	No. 11p	0.14	0.12	0.10	0.13	0.24	0.12	0.13
	No. 11d	0.35	0.10	0.41	0.50	0.33	0.32	0.30
Hilar side	No. 10	NA	0.63	1.33	0.50	2.42	0.00	0.93

The posterior/anterior lymph node (LN) ratio and the average of these ratios were calculated for each cadaver. Total: Sum of the number of posterior LNs in all cases divided by the sum of the number of anterior LNs in all cases. NA: Not available.