Table 3.

Pathological data

	RAS group	OS group	P
Pathological diagnosis, n (%)
Mucinous cystadenoma	6 (22.2)	6 (22.2)	1
IPMN	5 (18.5)	4 (14.8)	0.72
Serous cystadenoma	5 (18.5)	2 (7.4)	0.22
Pseudocyst	2 (7.4)	3 (11.1)	0.64
Acinar cell cystadenoma	2 (7.4)	0	0.15
Serous microcystic cystadenoma	1 (3.7)	9 (33.3)	<0.01
Serous oligocystic cystadenoma	1 (3.7)	2 (7.4)	0.55
Lymphoepithelial cyst	1 (3.7)	0	0.31
Lymphangioma cystic	0	1 (4)	0.31
Malignant diagnosis	4 (14.8)	0	0.038
Mucinous cystadenocarcinoma	1 (3.7)	0	0.31
Mucogelatinous adenocarcinoma	1 (3.7)	0	0.31
Neuroendocrine tumour	1 (3.7)	0	0.31
Adenocarcinoma and neuroendocrine tumour	1 (3.7)	0	0.31
Mean lymph node harvest, n (range)	14.2±18.6 (0–85)	14.8±10.0 (1–39)	0.89
Mean tumour size, cm (range)	4.3±1.8 (2–10)	4.4±2.1 (1.2–10)	0.81

IPMN: Intra-ductal papillary mucinous neoplasms, OS: Open surgery, RAS: Robotic-assisted surgery