Duodenal Perforation Masquerading as a Retroperitoneal Mass in a Neonate: A Rare Presentation

Duodenal perforation (DP) is a very rare entity in neonates. Although there can be several causes of retroperitoneal mass in a neonate, DP presenting as a retroperitoneal mass has not been described in the literature. We present a case of DP masquerading as a retroperitoneal mass in a 28-day-old neonate.