Retrospective Study
Copyright ©The Author(s) 2021.
World J Gastrointest Surg. Apr 27, 2021; 13(4): 366-378
Published online Apr 27, 2021. doi: 10.4240/wjgs.v13.i4.366
Table 2 Pathological characteristics of primary proximal gastric cancer and remnant gastric cancer groups
Variables
PGC, n = 120 (%)
RGC, n = 41 (%)
P value
Tumor size, mean ± SD5.1 (3.4)5.3 (3.4)0.785
Lauren type0.302
Intestinal68 (56.7)27 (65.9)
Diffuse/mixed52 (43.3)14 (34.1)
Grade of histological differentiation0.256
Well/moderately differentiated55 (45.8)23 (56.1)
Poorly differentiated65 (54.2)18 (43.9)
Lymphatic invasion0.484
No51 (42.5)20 (48.8)
Yes69 (57.5)21 (51.2)
Venous invasion0.069
No75 (62.5)32 (78)
Yes45 (37.5)9 (22)
Perineural invasion0.602
No50 (41.7)19 (46.3)
Yes70 (58.3)22 (53.7)
pT0.842
pT1/T246 (38.3)15 (36.6)
pT3/T474 (61.7)26 (63.4)
Number of resected LNs, mean ± SD43.2 (20.8)26 (14)< 0.001
LN metastasis0.204
pN045 (37.5)20 (48.8)
pN+75 (62.5)21 (51.2)
Lymph node ratio 0.915
LR076 (63.3)25 (61)
LR121 (17.5)9 (22)
LR211 (9.2)4 (9.8)
LR312 (10)3 (7.3)
pTNM0.773
I36 (30)13 (31.7)
II27 (22.5)11 (28.8)
III57 (47.5)17 (41.5)
Adjuvant chemotherapy< 0.001
No45 (37.5)29 (70.7)
Yes71 (62.5)12 (29.3)
Recurrence0.607
No87 (72.5)28 (68.3)
Yes33 (27.5)13 (31.7)
Pattern of recurrence10.322
Locoregional11 (33.3)5 (38.5)
Distant12 (36.4)5 (38.5)
Peritoneal14 (42.4)8 (61.5)