Thoracoabdominal duplication accompanied by intestinal malrotation: a case report and literature review of a rare congenital anomaly in an infant

Introduction and importance:Thoracoabdominal duplication and intestinal malrotation are extremely rare congenital alimentary tract anomalies that can manifest in any segment of the gastrointestinal tract. Still, tubular duplications are an even rarer subset of alimentary tract duplications. Misdiagnosis could occur and this will yield devastating ramifications. Therefore, consideration in the clinical settings is warranted to aid in conducting timely therapeutic interventions.Case presentation:In this article, we illustrate the overwhelmingly rare occurrence of thoracoabdominal duplication coexistent with intestinal malrotation in a 7-month-old male whose primary complaint was chronic dyspnoea since birth that progressed to involve cough and fever. Imaging analysis revealed a significant intrathoracic fluid-filled cyst.Clinical discussion:The intestinal malrotation was treated through Ladd's procedure, and surgical excision of the duplicated segments was accomplished. The subsequent analysis of the resected specimens via means of histopathology utilizing Hematoxylin and Eosin dyes established the definitive diagnosis of a foregut duplication cyst.Conclusion:Thoracoabdominal duplication is one of the most crucial topics in the field of Paediatric Surgery. It is exceptionally rare in occurrence, and the scarcity of available resources that document and describe this topic is evident in the published literature. The authors must opt to document, study, and broaden awareness regarding this life-threatening pathology so that they can circumvent the resultant complications by means of early detection and the performance of apt surgical interventions. Upon careful review of the available literature, we can state that ours is the first-ever case documented from their country regarding this topic and this co-incidence.