Acute colonic pseudo-obstruction in an infant after retroperitoneal pyeloplasty successfully treated with rectal irrigation

•The first reported case of acute colonic pseudo-obstruction (ACSO) in infants.•Detailed description of the clinical presentation, diagnostic images and managements.•Demonstration of successful treatment of ACPO in infant by rectal irrigation.•Through description of the current knowledge in diagnosing and managing ACPO.

Acute colonic pseudo-obstruction is frequently observed in adults but is rarely seen in children. The illness has never been reported in infants, who might differ in their reaction to the acute bowel distension and their response to the available management options. This report describes the presentation of acute colonic pseudo-obstruction in an infant after retroperitoneal pyeloplasty and its successful treatment with rectal irrigation.