Atypical retinopathy in ataxia with vitamin E deficiency: report of a sibship

Neurogenetics. 2024 Jan;25(1):33-38. doi: 10.1007/s10048-023-00741-9. Epub 2023 Dec 18.

Abstract

Typical retinitis pigmentosa (RP) may not be the only retinal phenotype encountered in ataxia with vitamin E deficiency (AVED). The following short case series describes a novel form of retinopathy in AVED. We describe two patients with AVED belonging to the same consanguineous sibship. Both presented an unusual retinopathy consisting of scattered, multifocal, nummular, hyperautofluorescent atrophic retinal patches. The retinopathy remained stable under vitamin E supplementation. We hypothesize these changes to be the result of arrested AVED-related RP following early supplementation with α-tocopherol acetate.

Keywords: Ataxia with vitamin E deficiency; Inherited retinal dystrophy; Ophthalmic genetics; Retinopathy; Whole-exome sequencing.

MeSH terms

  • Ataxia / complications
  • Ataxia / genetics
  • Carrier Proteins / genetics
  • Humans
  • Mutation
  • Pedigree
  • Retinitis Pigmentosa* / complications
  • Retinitis Pigmentosa* / genetics
  • Vitamin E Deficiency* / complications
  • Vitamin E Deficiency* / genetics

Substances

  • Carrier Proteins

Supplementary concepts

  • Ataxia with vitamin E deficiency