Illustrative CasesOrnithine Transcarbamylase Deficiency Presenting as Recurrent Abdominal Pain in ChildhoodMhanni, Aizeddin A. MD, FRCPC, FCCMG, FACMG, PhD*; Prasad, Chitra MD, FRCPC, FCCMG, FACMG†‡; Rockman-Greenberg, Cheryl MD, CM, FRCPC, FCCMG*Author Information From the *Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba; †Department of Pediatrics, University of Western Ontario; and ‡London Health Sciences Centre, London, Ontario, Canada. Disclosure: The authors declare no conflicts of interest. Reprints: Aizeddin A. Mhanni, MD, FRCPC, FCCMG, FACMG, PhD, Genetics and Metabolism Program, FE-229-820 Sherbrook St, Winnipeg, Manitoba, Canada R3A 1R9 (e-mail: email@example.com). Pediatric Emergency Care: September 2011 - Volume 27 - Issue 9 - p 850-853 doi: 10.1097/PEC.0b013e31822c25c9 Buy SDC Metrics Abstract Recurrent abdominal pain remains one of the most common symptoms in pediatrics. We present the case of a 3-year-old girl who had recurrent episodes of abdominal pain requiring more than 13 visits to the emergency department. A diagnosis of ornithine transcarbamylase deficiency was eventually made. Urea cycle disorders often present beyond the neonatal period with frequent vomiting episodes; however, recurrent abdominal pain as a presenting symptom is unusual. Unnecessary invasive investigations of recurrent abdominal pain in childhood can be avoided by considering inborn errors of metabolism earlier in the differential diagnosis. © 2011 Lippincott Williams & Wilkins, Inc.