Case report: We report an observation of a triplet newborn presenting with haemolysis, metabolic acidosis with no lactic acidosis revealing a glutathione synthetase deficiency. These biological signs were associated with multiple malformations (IUGR, toes hypoplasia and cerebral ventricular anomalies), not described in this disease.
Conclusion: This rare diagnosis can be confirmed by elevation of urinary 5-oxoproline. Prognosis is linked to diagnosis and treatment precocity. We have no argument to think that the malformations we found are related to a glutathione synthetase deficiency. However, as the neurological evolution is often unfavourable, neuroradiological explorations could give information about the location and severity of potential cerebral lesions.