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Introduction <p>Duplication cysts are rare congenital malformations arising from developmental anomalies of the primitive foregut, with an incidence of approximately 1 in 8200 live births. These cysts may present at any point along the esophagus but most commonly occur in the upper thoracic region.</p> Case presentation <p>This report presents a rare case of a large thoracic duplication cyst in a 3-month-old female Asian infant who presented with respiratory distress and cyanosis. Imaging studies, particularly computed tomography scans, revealed a large cystic mass in the posterior mediastinum. Surgical excision was performed via retropleural thoracotomy, which allowed for complete removal without the need for chest tube placement. Histopathology confirmed the diagnosis of an enteric duplication cyst. The patient had excellent postoperative recovery with resolution of symptoms.</p> Conclusion <p>Duplication cysts are rare congenital anomalies. Early differentiation from other malignant tumors is highly recommended in the beginning. Computed tomography imaging is the preferred initial diagnostic modality. Retropleural thoracotomy in this case successfully helped to remove the cyst from the thoracic region without any complications.</p>

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Successful resection of a large duplication cyst via retropleural thoracotomy approach in a 3-month-old infant from Kabul, Afghanistan: a case report

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  • 发表日期：

    2026年2月2日

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  • Mohammad Hussain Mohammadi,
  • Mohammad Tareq Rahimi,
  • Abdulwahab Amanat,
  • Mamonullah Asmati,
  • Hasseburahman Safi,
  • Tawhid Abdulrahman Rahimi

摘要

Introduction

Duplication cysts are rare congenital malformations arising from developmental anomalies of the primitive foregut, with an incidence of approximately 1 in 8200 live births. These cysts may present at any point along the esophagus but most commonly occur in the upper thoracic region.

Case presentation

This report presents a rare case of a large thoracic duplication cyst in a 3-month-old female Asian infant who presented with respiratory distress and cyanosis. Imaging studies, particularly computed tomography scans, revealed a large cystic mass in the posterior mediastinum. Surgical excision was performed via retropleural thoracotomy, which allowed for complete removal without the need for chest tube placement. Histopathology confirmed the diagnosis of an enteric duplication cyst. The patient had excellent postoperative recovery with resolution of symptoms.

Conclusion

Duplication cysts are rare congenital anomalies. Early differentiation from other malignant tumors is highly recommended in the beginning. Computed tomography imaging is the preferred initial diagnostic modality. Retropleural thoracotomy in this case successfully helped to remove the cyst from the thoracic region without any complications.