Clinicopathologic factors influencing the accuracy of EUS for superficial esophageal carcinoma

Table 5 Clinicopathologic characteristics associated with overestimation of invasion depth by endoscopic ultrasonography in superficial esophageal carcinoma

Characteristics	No. of overestimated lesions	Pvalue
Location		0.074
Upper esophagus	2/18
Mid-esophagus	4/72
Lower esophagus	5/24
Histologic type		0.464
Squamous cell carcinoma	10/108
Adenocarcinoma	1/3
Neuroendocrine carcinoma	0/3
Differentiation degree		0.805
Well differentiated	4/43
Moderately differentiated	7/61
Poorly differentiated	0/10
Macroscopic shape		0.491
Elevated	7/62
Flat	2/38
Depressed	2/14
Circumferential spread		0.266
< 1/4	7/44
1/4-2/4	2/35
2/4-3/4	0/16
≥ 3/4	2/19
Tumor size (cm)		0.513
< 3	6/74
≥ 3	5/40