[Esophageal anomalies developed from tracheobronchial remnants. Reports of two cases with delayed diagnosis in adults].

Congenital esophageal stenosis and bronchogenic cyst are secondary to the same dysembryoplastic disorder in spite of different clinical signs. These lesions are revealed during infancy, unusually during adult age. Dysphagia is the most common symptom. Our two cases highlight these topics. Imaging methods displayed, in case 1, a distal stenosis, associated with a proximal dilatation, in case 2, a benign independent mass, without connection with the respiratory tract. A chirurgical excision was carried out in the two cases and the post operative course was uncomplicated. Histologically the two resection specimens showed a respiratory mucosa trapping cartilaginous pieces.