Table 2. Pathologic results.

Variable		Value (n=69)
Tumor size in pathology (cm)		2.0±1.1
PRM (cm)		4.4±2.1
DRM (cm)		6.8±3.9
No. of retrieved LNs		40.6±14.8
No. of metastatic LNs		0.1±0.6
Histologic type from pathology
	Differentiated	34 (49.3)
	Undifferentiated	35 (50.7)
Lymphovascular invasion		8 (11.6)
Neural invasion		1 (1.4)
Depth of invasion in pathology
	Mucosa	48 (69.6)
	SM1	7 (10.1)
	SM2	6 (8.7)
	SM3	8 (11.6)
N stage
	N0	65 (94.2)
	N1	3 (4.3)
	N2	1 (1.4)

Data are shown as mean±standard deviation or number (%).

PRM = proximal resection margin; DRM = distal resection margin; LN = lymph node; SM = submucosa.