Clinicopathologic factors influencing the accuracy of EUS for superficial esophageal carcinoma

Table 7 Clinicopathologic characteristics associated with underestimation of invasion depth by endoscopic ultrasonography in superficial esophageal carcinoma

Characteristics	No. of underestimated lesions	Pvalue
Location		0.160
Upper esophagus	0/18
Mid-esophagus	11/72
Lower esophagus	2/24
Histologic type		1.000
Squamous cell carcinoma	13/108
Adenocarcinoma	0/3
Neuroendocrine carcinoma	0/3
Differentiation degree		0.903
Well differentiated	4/43
Moderately differentiated	8/61
Poorly differentiated	1/10
Macroscopic shape		0.379
Elevated	9/62
Flat	4/38
Depressed	0/14
Circumferential spread		0.001
< 1/4	0/44
1/4–2/4	4/35
2/4–3/4	3/16
≥ 3/4	6/19
Tumor size (cm)		0.001
< 3	3/74
≥ 3	10/40