Clinicopathologic factors influencing the accuracy of EUS for superficial esophageal carcinoma

Table 3 Accuracy of endosonographic assessment of invasion depth in superficial esophageal carcinoma, according to clinicopathologic characteristics

Characteristics	No. of accurately assessed lesions	Pvalue
Location		0.379
Upper esophagus	16/18
Mid-esophagus	57/72
Lower esophagus	17/24
Histologic type		0.767
Squamous cell carcinoma	85/108
Adenocarcinoma	2/3
Neuroendocrine carcinoma	3/3
Differentiation degree		0.617
Well differentiated	35/43
Moderately differentiated	46/61
Poorly differentiated	9/10
Macroscopic shape		0.486
Elevated	46/62
Flat	32/38
Depressed	12/14
Circumferential spread		0.136
< 1/4	37/44
1/4–2/4	29/35
2/4–3/4	13/16
≥ 3/4	11/19
Tumor size (cm)		0.002
< 3	65/74
≥ 3	25/40