A Foreign Body-Induced Duodenal Perforation Complicated by Retroperitoneal Abscess and Necrotizing Pancreatitis: A Report of a Rare Case

Duodenal perforations are rare but critical conditions that often present with significant morbidity and mortality. These injuries may result from peptic ulcer disease, trauma, or foreign bodies, with posterior perforations posing particular challenges due to their retroperitoneal location. Such perforations may lead to complications, including retroperitoneal abscesses, necrotizing pancreatitis, and fistula. The management of these cases often requires a multidisciplinary approach. This case report describes a highly unusual instance of a complicated posterior duodenal perforation in a 76-year-old male, caused by a foreign body, which was later identified as an aggregate of multiple fragments of vegetable matter, necessitating surgical intervention. This case highlights the importance of recognizing atypical causes of perforation and underscores the complexity of managing such rare occurrences. By presenting this case, we aim to contribute to the growing body of literature on the topic and discuss the diagnostic, therapeutic, and clinical implications of managing such cases.