| Results of cervico-thoracic radiography | Number | % |
| Double contour opaque button cell radio image | 65 | 71.4 |
| Denture-like opaque radio image with hook | 10 | 11 |
| Fishbone-like linear filiform radiopaque image | 6 | 6.6 |
| Esotracheal fistula | 3 | 3.3 |
| Esophageal stenosis | 3 | 3.3 |
| Linear needle-like radiopaque image | 2 | 2.2 |
| Earring-like radiopaque image | 2 | 2.2 |
| Meat-bone-like radiopaque image | 1 | 1.1 |
| Miningeroid sign | 1 | 1.1 |
| Semicircular, spring-like radiopaque image | 1 | 1.1 |