Table 2.

Pathology

Pathology	Open		Minimally invasive		P-value
Tumor type
Intestinal-type adenocarcinoma	25	51.0%	16	34.0%	0.366*
Diffuse-type adenocarcinoma	19	38.8%	26	55.3%
Carcinoid	1	2.0%	1	2.1%
Signet cell carcinoma	3	6.1%	1	2.1%
Other	1	2.0%	6	12.8%
Pathological T-stage					0.937*
T0 (complete regression)	4	8.2%	3	6.4%
Tis	2	4.1%	1	2.1%
T1	8	16.3%	6	12.8%
T2	4	8.2%	5	10.6%
T3	19	38.8%	17	36.2%
T4	12	24.5%	15	31.9%
Pathological N-stage					0.323**
N0	23	46.9%	20	42.6%
N1	13	26.5%	7	14.9%
N2	8	16.3%	8	17.0%
N3	5	10.2%	12	25.5%
Number of examined LN per patient	44.3	± 16.7	40.7	± 16.3	0.209
N patients > 15 LN resected	48	98.0%	46	97.9%	0.742
Adherence to lymphadenectomy (based on pathology)
< D1 lymphadenectomy	7	15%	3	6%
D1 lymphadenectomy	14	30%	17	36%
D1 + lymphadenectomy	12	26%	14	30%
D2 lymphadenectomy	14	30%	13	28%