Case report on a de novo variant in the X-linked PRPS1 gene presenting with retinal dystrophy, severe tremors, and ataxia in a female patient.

Case Summary The patient is a 42-year-old female who presented with a de novo missense variant in the PRPS1 gene. Her phenotype includes asymmetric retinal dystrophy with sensory esotropia, congenital sensorineural hearing loss, neuropathy, and severe tremors with recent-onset ataxia. This contributes a new presentation of ophthalmic and neurological findings to the literature.