Comparison of Clinicopathological Characteristics in the Patients with Cardiac Cancer with or without Esophagogastric Junctional Invasion: A Single-Center Retrospective Cohort Study

Table 1

Clinicopathological characteristics of patients (𝑛=80).

Variable	Number of subject
Age (year, mean ± SD)	67.6 ± 10.8
Sex
Male	61 (76.3%)
Female	19 (23.7%)
Pathological tumor size (mm, mean ± SD)	46.8 ± 22.7
Macro type
Type 0	31 (38.8%)
Type 1	4 (5.0%)
Type 2	18 (22.5%)
Type 3	22 (27.5%)
Type 4	1 (1.3%)
Type 5	4 (5.0%)
Main histological type^†
Differentiated	48 (60.0%)
Undifferentiated	32 (40.0%)
Distance between EGJ and tumor epicenter
≤20 mm	21 (26.3%)
>20 mm	59 (73.8%)
Esophageal invasion
Yes	26 (32.5%)
No	54 (67.5%)
Lymphatic invasion
L0	32 (40.0%)
L1	48 (60.0%)
Venous invasion
V0	32 (40.0%)
V1	48 (60.0%)
V2	0
Depth of tumor invasion
pT1	29 (36.3%)
pT2	11 (13.8%)
pT3	26 (32.5%)
pT4	14 (17.5%)
Lymph node metastasis
pN0	45 (56.3%)
pN1	12 (15.0%)
pN2	11 (13.8%)
pN3	12 (15.0%)
Distant metastasis
M0	65 (81.3%)
M1	15 (18.8%)
TNM stage
I	32 (40.0%)
II	21 (26.3%)
III	12 (15.0%)
IV	15 (18.8%)
Extent of gastrectomy
Proximal	31 (38.8%)
Total	49 (61.3%)
Surgical approach
Laparoscopic surgery	30 (37.5%)
Hand-assisted laparoscopic surgery	17 (21.3%)
Open surgery	33 (41.3%)
Splenectomy
No	56 (70.0%)
Yes	24 (30.0%)
Thoracotomy
No	74 (92.5%)
Yes	6 (7.5%)
Postoperative chemotherapy
No	45 (56.3%)
Yes	35 (43.8%)

^†Differentiated: papillary carcinoma, well differentiated adenocarcinoma, moderately differentiated adenocarcinoma; Undifferentiated: poorly differentiated adenocarcinoma, signet-ring cell carcinoma, mucinous adenocarcinoma.