A Case of Horizontal Gaze Palsy With Progressive Scoliosis and G6PD Deficiency in a Child

Horizontal gaze palsy with progressive scoliosis (HGPPS) is a rare autosomal recessive disease associated with mutation in the Roundabout-3 (ROBO3) gene (chromosome 11q23-25). Here, we present case report of a 7-year old male child born out of consanguineous marriage with history of similar condition in paternal uncle. The child had typical findings of HGPPS, i.e., horizontal gaze palsy, scoliosis, and characteristic findings on MRI associated with homozygous c.575G>A (p.Gly192Asp) mutation in ROBO3 gene. Additionally, mutation in G6PD gene was also observed in this patient, hypothesizing possible association between the two.