Table 1: Clinicopathological features of superficial esophageal squamous cell carcinomas and visualization by narrow-band imaging (NBI) and autofluorescence imaging (AFI).

Case Lesion Location Circumference of esophageal lumen Macroscopic type Size, mm Depth of invasion (Vienna classification) Treatment Visualization
NBIAFI

1 1 Lower <1/2 Depressed 15 Mucosal (4.2) Fair Fair
2 2 Middle 1/2≤ <3/4 Depressed 53 Mucosal (5.1) ER Excellent Excellent
3 3 Middle <1/2 Depressed 5 Mucosal (4.2) ER Excellent Poor
4 Middle <1/2 Depressed 30 Mucosal (5.1) ER Excellent Excellent
5 Middle <1/2 Depressed 15 Mucosal (4.2) ERExcellent Fair
4 6 Upper 1/2≤ <3/4 Depressed 35 Mucosal (5.1) ER Excellent Excellent
5 7 Middle <1/2 Depressed 10 Mucosal (5.1) ER Excellent Fair
6 8 Middle <1/2 Depressed 3 Mucosal (4.2) ER Excellent Fair
7 9 Middle <1/2 Depressed 23 Mucosal (5.1) ER Excellent Fair
8 10 Lower 1/2≤ <3/4 Depressed 43 Mucosal (5.1) ER Excellent Excellent
9 11 Middle <1/2 Depressed 11 Mucosal (4.2) ER Fair Excellent
10 12 Lower 3/4≤ Depressed 60 Mucosal (5.1) Surgery Excellent Fair
11 13 Lower 1/2≤ <3/4 Depressed 25 Mucosal (5.1) ER Excellent Excellent
12 14 Middle 1/2≤ <3/4 Elevated 30 Submucosal (5.2) Surgery Excellent Excellent
15 Middle <1/2 Depressed 10 Mucosal (5.1) Surgery Excellent Excellent
13 16 Middle 1/2≤ <3/4 Depressed 64 Mucosal (5.1) ER Excellent Excellent
14 17 Middle <1/2 Depressed 18 Mucosal (5.1) ER Excellent Poor
18 Lower <1/2 Depressed 15 Mucosal (4.2) ER Excellent Fair
19 Middle <1/2 Depressed 12 Mucosal (5.1) ER Poor Fair
20 Upper <1/2 Depressed 10 Mucosal (4.2) ER Excellent Fair
15 21 Lower 1/2≤ <3/4 Depressed 50 Sub mucosal (5.2) ER Excellent Excellent
16 22 Upper 1/2≤ <3/4 Depressed 18 Mucosal (5.1) ER Excellent Excellent
17 23 Middle 1/2≤ <3/4 Depressed 30 Mucosal (5.1) Surgery Excellent Excellent
18 24 Lower <1/2 Depressed 20 Mucosal (5.1) ER Fair Excellent
19 25 Lower 1/2≤ <3/4 Depressed 26 Mucosal (4.2) ER Excellent Excellent
20 26 Middle 3/4≤ Elevated 100 Sub mucosal (5.2) Surgery Excellent Fair
21 27 Middle <1/2 Depressed 15 Mucosal (5.1) ER Excellent Excellent
22 28 Lower <1/2 Depressed 30 Mucosal (5.1) ER Excellent Excellent
29 Upper <1/2 Depressed 10 Mucosal (4.2) ER Excellent Excellent
23 30 Lower 3/4≤ Depressed 40 Sub mucosal (5.2) ER Excellent Excellent
24 31 Middle <1/2 Depressed 30 Mucosal (4.2) ER Excellent Excellent

* ER:  endoscopic resection.