Summary
Alimentary tract duplications are rare, linked in their tubular form with a disturbance of organogenesis at the time of the separation of the notochord during the 4th week of gestation. Its division leads to the formation of a supernumerary esophagus, situated in the posterior mediastinum, associated with vertebral malformations and connected at its distal extremity with the alimentary tract. We report a case of esophageal duplication revealed antenatally as an ultrasound image of fluid tonality in the posterior mediastinum, causing a major pleural effusion. The other diagnostic possibilities are discussed in terms of the anatomy, embryogenesis and ultrasonographic appearance of the lesion.
Résumé
Les duplications digestives sont rares, liées dans leur forme tubulaire à un trouble de l'organogenèse datant de l'isolement de la notochorde lors de la 4e semaine de gestation: sa division aboutit à la formation d'un œsophage surnuméraire, se trouvant dans le médiastin postérieur, associé à des malformations vertébrales et relié à son extrémité distale au tractus digestif. Nous rapportons une observation de duplication œsophagienne à révélation anténatale, sous la forme d'une image échographique de tonalité liquidienne du médiastin postérieur, à l'origine d'un épanchement pleural important. A la lumière de l'anatomie, de l'embryogenèse, et de l'aspect échographique de la lésion, les autres diagnostics possibles sont discutés.
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Jacquemard, F., Palaric, J., D'Hervé, D. et al. Antenatal diagnosis of abdominothoracic alimentary tract duplication: a case report. Surg Radiol Anat 13, 53–57 (1991). https://doi.org/10.1007/BF01623143
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DOI: https://doi.org/10.1007/BF01623143