Research Article
Endoscopic Submucosal Single- or Multi-tunnel Dissection for Near-Circumferential and Circumferential Superficial Esophageal Neoplastic Lesions
Table 1
Clinicopathological characteristics of the patients.
| | Number of patients | 124 | | Age, (range) (years) | (41-83) | | Sex (male, female) | 76 (48) | | Size, mean (range) (cm2) | (4.8-83.9) | | Circumferential extent () (%) | | | 3/4 | 39 (31.4%) | | 4/5 | 25 (20.2%) | | 5/6 | 15 (12.1%) | | 7/8 | 4 (3.2%) | | 1 | 41 (33.1%) | | Macroscopic type () (%) | | | 0-IIb | 28 (22.6%) | | | 39 (31.4%) | | | 3 (2.4%) | | | 44 (35.5%) | | 0-IIa | 10 (8.1%) | | Multifocal lesions () (%) | 37 (29.8%) | | Number of tunnels () (%) | | | Single tunnel | 54 (43.5%) | | Two tunnels | 43 (34.7%) | | Three tunnels | 19 (15.3%) | | Four tunnels | 8 (6.5%) | | Depth of invasion () (%) | | | Low-grade intraepithelial neoplasia | 1 (0.8%) | | High-grade intraepithelial neoplasia | 9 (7.3%) | | M1 | 36 (29%) | | M2 | 27 (21.8%) | | M3 | 29 (23.4%) | | SM1 | 8 (6.4%) | | >SM1 | 14 (11.3%) |
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