Table 2 Endoscopic and pathological characteristics
Variable | Lesion No. (%) |
|---|---|
Tumor size, mm, mean ± SD | 32.8 ± 16.9 (range:10–100) |
Tumor location | |
Cervical esophagus | 6 (2.6%) |
Upper third of the esophagus | 36 (15.7%) |
Middle third of the esophagus | 127 (55.5%) |
Lower third of the esophagus | 60 (26.2%) |
Circumferential extension of the tumor | |
< 1/2 | 126 (55.0%) |
< 3/4 | 74 (32.3%) |
≥ 3/4 | 29 (12.7%) |
Lugol staining background | |
Type A or B | 65 (28.4%) |
Type C or D | 164 (71.6%) |
Final pathology | |
High-grade dysplasia | 131 (57.2%) |
Squamous cell carcinoma | 98 (42.8%) |
Depth of tumor invasion | |
Mucosa | 189 (82.6%) |
m1 | 100 (43.7%) |
m2 | 60 (26.2%) |
m3 | 29 (12.7%) |
Submucosa | 40 (17.4%) |