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| Type | Morphologia | % |
| Type 1: Isolated CES-segmental type | a. Tracheobronchial remnants (TBR) | 29.9 |
| b. Fibromuscular stenosis (FMS) | 53.8 | |
| Type 2: Isolated CES-diaphragm type | Membranous web (MW) | 16.2 |
| Type 3: Combined lesions | a. Segmental stenosis occurring distal to EA/TEF b. Segmental stenosis occurring distal to a MW |
|
| CES: Congenital esophageal stenosis; EA: Esophageal atresia; TEF: Tracheoesophageal fistulas. | ||
