The diversity between curatively resected pancreatic head and body-tail cancers based on the 8th edition of AJCC staging system: a multicenter cohort study

Table 1 The clinical data in 351 cases of PC patients with curatively surgical resection

Parameters	No. of patients	Parameters	No. of patients
Cases	351	Cases	351
Age (years)		Perineural invasion
≤ 65	240	Absent	278
> 65	111	Present	73
Gender		Vascular permeation
Male	210	Absent	266
Female	141	Present	85
Tumor size (cm)		Pre-therapeutic CA19–9 level
< 3	108	Mean ± SD	355 ± 283
≥ 3	243	PLM
Tumor location		Absent	227
Ph	220	Present	124
Pbt	131	7th AJCC stage^a
Differentiation		IA	19
Well	140	IB	140
Moderate	118	IIA	76
Poor	93	IIB	104
8th T stage		IV	6
T1	35	Surgical procedures
T2	167	PD alone	196
T3	143	PD + gastrointestine	8
T4	6	PD + portal or superior mesenteric vein	11
7th T stage^a		PD+ hepatic or superior mesenteric artery	3
T1	27	PD + liver	2
T2	215	PDP alone	97
T3	103	PDP + gastrointestine	12
Lymph nodes metastasis		PDP + portal vein or inferior mesenteric vein	6
N0	244	PDP + gastrointestine +left adrenal	5
N1	91	PDP + liver+ left adrenal	1
N2	16	PDP + liver	3
8th AJCC stage		PDP + left adrenal	4
IA	24	PDP+ celiac artery	3
IB	119	Postoperative chemotherapy
IIA	93	Ph cancers	125/220
IIB	86	Pbt cancers	73/131
III	23
IV	6

N1 Lymph nodes metastasis 1–3; N2 Lymph nodes metastasis> 3; PLM postoperative live metastasis; PD Pancreatoduodenectomy; PDP Distal pancreatectomy7th and 8th AJCC stage 7th and 8th edition of AJCC staging system in PC; Ph Pancreatic head; Pbt Pancreatic body-tail. a 6 cases of T4 stage in 8th AJCC stage (III) were exclude in 7th AJCC stage

ISSN: 1471-2407