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Ornithine transcarbamylase deficiency presenting as recurrent abdominal pain in childhood
Aizeddin A Mhanni1, Chitra Prasad, Cheryl Rockman-Greenberg
1Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada. amhanni@hsc.mb.ca
Insights
Recurrent abdominal pain in children can signal rare metabolic disorders. Early consideration of inborn errors of metabolism, like ornithine transcarbamylase deficiency, can prevent unnecessary tests.
Area of Science:
- Pediatric Gastroenterology
- Metabolic Disorders
- Genetics
Background:
- Recurrent abdominal pain is a frequent pediatric complaint.
- Urea cycle disorders (UCDs) typically present with vomiting beyond the neonatal period.
Observation:
- A 3-year-old girl experienced recurrent abdominal pain, leading to over 13 emergency department visits.
- Diagnosis was delayed due to the unusual presentation.
Findings:
- The patient was diagnosed with ornithine transcarbamylase deficiency, a type of UCD.
- Recurrent abdominal pain is an atypical initial symptom for UCDs.
Implications:
- Considering inborn errors of metabolism in the differential diagnosis for recurrent abdominal pain is crucial.
- Early metabolic evaluation can prevent invasive procedures and diagnostic delays in children.
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.
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