CASE REPORT article
Front. Pediatr.
Sec. Pediatric Surgery
Cervical Esophageal Duplication Cyst Containing Ectopic Thyroid Tissue in a Neonate: A Case Report
Provisionally accepted
Pattamon Sutthatarn1*
Pattaranun Sattathara1Oradee Chanhavasu2Pornchai Achatsachat3
Paisarn Vejchapipat1Soottiporn Chittmittrapap2- 1Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- 2Bumrungrad International Hospital, Bangkok, Thailand
- 3Chulalongkorn University Faculty of Medicine, Bangkok, Thailand
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Cervical esophageal duplication cysts represent a rare pathological entity, and the presence of ectopic thyroid tissue within cysts is an even more rare phenomenon. This case study elucidates the clinical presentation of a 2.5-month-old infant, who initially presented with a left cervical mass at seven days of life, and subsequently experienced stridor and respiratory disturbances correlated with feeding. Surgical intervention was performed, and histopathological analysis confirmed the diagnosis of an esophageal duplication cyst containing thyroid follicular tissue within its wall. Early recognition and timely surgical management are crucial for preventing life-threatening airway complications when respiratory symptoms are present.
Keywords: Cervical mass, Esophageal duplication cyst, Foregut duplication anomaly, Infant, noisy breathing
Received: 03 Dec 2025; Accepted: 13 Feb 2026.
Copyright: © 2026 Sutthatarn, Sattathara, Chanhavasu, Achatsachat, Vejchapipat and Chittmittrapap. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Pattamon Sutthatarn
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