A complex foregut malformation: case report and review

Introduction: Esophageal duplication cysts (EDCs) associated with pulmonary sequestration (PS) are rare congenital anomalies originating from the embryonic foregut. They often present diagnostic challenges due to their complex nature and non-communicating features. Case Report: We report the case of a one-year-old girl with a prenatal diagnosis of a cystic lesion, initially suspected to be congenital cystic adenomatoid malformation. Postnatal imaging confirmed the presence of PS and a non-communicating EDC. Thoracoscopic lobectomy was performed, and histopathology confirmed the diagnosis. Discussion: This case highlights the difficulty in diagnosing non-communicating EDCs with PS, especially prenatally. Imaging techniques like CT and MRI are crucial, but histological analysis remains the gold standard for confirmation. Multidisciplinary management is essential for accurate diagnosis and effective treatment. Conclusion: Early surgical intervention is critical to prevent complications and ensure a favorable outcome. Thoracoscopic surgery offers benefits in terms of morbidity reduction and preservation of lung function.