Spontaneous perforation of a colonic duplication.

Alimentary tract duplications are rare anomalies that present with a wide spectrum of clinical manifestations. Mass lesions or obstructive symptoms predominate in infancy, while pain and hemorrhagic complications often herald their recognition in childhood. Spontaneous perforation, a rarely encountered complication, accounted for the acute exacerbation of previously chronic abdominal pain in a three-year-old girl. This case emphasizes the potential for these benign lesions to present with progressive abdominal symptoms and ultimately pressure-induced ischemic perforation.