Spinocerebellar Ataxia Type 14 (SCA14) in an Argentinian Family: a Case Report

Overview

Journal J Med Case Rep

Publisher Biomed Central

Specialty General Medicine

Date 2023 Apr 26

PMID 37101238

Authors

Niharika Duggirala

Kathie J Ngo

Sabrina M Pagnoni

Alberto L Rosa

Brent L Fogel

Affiliations

Soon will be listed here.

Abstract

Background: Hereditary spinocerebellar ataxias are a group of genetic neurological disorders that result in degeneration of the cerebellum and brainstem, leading to difficulty in controlling balance and muscle coordination.

Case Presentation: A family affected by spinocerebellar ataxia was identified in Argentina and investigated using whole exome sequencing to determine the genetic etiology. The proband, a female white Hispanic aged 48, was noted to have slowly progressive gait ataxia, dysarthria, nystagmus, and moderate cerebellar atrophy. Whole exome sequencing was performed on three affected and two unaffected family members and revealed a dominant pathogenic variant, p.Gln127Arg (19:54392986 A>G), in the protein kinase C gamma gene, and the family was diagnosed with spinocerebellar ataxia type 14.

Conclusions: To our knowledge, no previous cases of spinocerebellar ataxia type 14 have been reported in Argentina, expanding the global presence of this neurological disorder. This diagnosis supports whole exome sequencing as a high-yield method for identifying coding variants causing cerebellar ataxias and emphasizes the importance of broadening the clinical availability of whole exome sequencing for undiagnosed patients and families.

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