Clinical efficacy and pathological outcomes of transanal endoscopic intersphincteric resection for low rectal cancer

Table 3 Pathologic results of 45 patients with rectal cancer who underwent transanal endoscopic intersphincteric resection

Characteristic	Data
Pathological T stage
T1	3 (6.67)
T2	32 (71.11)
T3	10 (22.22)
Pathological N stage
N0	31 (68.89)
N1	10 (22.22)
N2	4 (8.89)
Pathological TNM stage
I	24 (53.33)
II	7 (15.56)
III	14 (31.11)
Tumor size in cm	2.86 (0.80-4.60)
Number of lymph nodes harvested	19.56 (8-40)
Number of positive lymph nodes	0.91 (0-7.0)
Length between tumor and DRM in cm	2.30 ± 0.62
CRM status
Positive	0
Negative	45 (100)
DRM status
Positive	0
Negative	45 (100)

Data are mean ± SD or n (%). Tumors were classified according to the American Joint Committee on Cancer tumor-node-metastasis system. CRM: Circumferential resection margin; DRM: Distal resection margin; TNM: Tumor-node-metastasis.