| Summary: | Acute liver injury (ALI) in children is a life-threatening event, and a definitive etiology can be identified in approximately 50% of cases. Neuroblastoma amplified sequence (NBAS) gene mutations have been associated with a broad phenotypic spectrum of this disease, ranging from recurrent episodes of fever-induced liver injuries to multiorgan involvement, including frequent infections as well as skeletal and immunological abnormalities. Here, we describe an adolescent female with a confirmed compound heterozygous NBAS gene mutation who presented with an episode of ALI complicated by severe acute kidney injury (AKI). The kidney injury was most probably driven by an intrinsic insult, as noted by elevated neutrophil gelatinase-associated lipocalin levels and a kidney biopsy demonstrating severe tubular damage consistent with acute tubular necrosis. While the patient’s liver function and mental status showed significant improvement with supportive care, recovery of kidney function was delayed, and the patient required acute hemodialysis. We suggest a causative relation between the NBAS gene mutation and severe AKI.
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