Dystonia as a presenting sign of subacute necrotising encephalomyelopathy in infancy

Insights

This case report details subacute necrotising encephalomyelopathy (SNE) in a patient with early-onset dystonic symptoms. Postmortem examination confirmed the diagnosis, highlighting SNE

Area of Science:

  • Neurology
  • Pathology

Background:

  • Subacute necrotising encephalomyelopathy (SNE), also known as Leigh syndrome, is a rare mitochondrial disease.
  • It typically affects infants and young children, presenting with progressive neurological deterioration.

Observation:

  • This report describes an unusual case of SNE with an early onset.
  • Notable clinical features included dystonic manifestations.
  • Computerised tomography (CT) revealed low attenuation areas in the basal ganglia.

Findings:

  • Laboratory investigations were within normal limits, complicating early diagnosis.
  • The diagnosis of SNE was definitively confirmed through postmortem examination.
  • The case highlights atypical presentations of SNE, including early onset and specific CT findings.

Implications:

  • This case expands the understanding of the clinical and radiological spectrum of subacute necrotising encephalomyelopathy.
  • Early recognition of atypical features is crucial for timely diagnosis and management, despite normal lab results.
  • Further research into mitochondrial diseases and their varied presentations is warranted.

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