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A case of Salla disease with involvement of the cerebellar white matter

T Linnankivi1, T Lönnqvist, T Autti

  • 1Department of Paediatric Neurology, Hospital for Children and Adolescents, University of Helsinki, Finland.

Neuroradiology
|February 20, 2003
PubMed

Insights

Salla disease diagnosis can be challenging due to atypical MRI findings and initial normal urine tests. Repeated testing and genetic analysis are crucial for accurate diagnosis of this lysosomal disorder.

Area of Science:

  • Biochemistry
  • Genetics
  • Neurology

Background:

  • Salla disease (SD) is a rare lysosomal storage disorder.
  • It typically presents in infancy with neurological symptoms like hypotonia, nystagmus, and ataxia.
  • Cerebral white matter hypomyelination is a characteristic MRI finding in SD.

Observation:

  • A challenging case of Salla disease is presented with atypical clinical and imaging findings.
  • Initial urine examinations failed to show elevated free sialic acid levels, a hallmark of SD.
  • MRI revealed abnormal signal intensity in the cerebellar white matter, deviating from the typical pattern.

Findings:

  • The study highlights the importance of repeated urine examinations in diagnosing Salla disease.
  • Genetic analysis for SLC17A5 mutations is recommended for patients with suspected SD.
  • Cerebellar white matter involvement on MRI does not rule out Salla disease.

Implications:

  • This case broadens the understanding of Salla disease presentation.
  • It emphasizes the need for a comprehensive diagnostic approach, including genetic testing.
  • Early and accurate diagnosis of Salla disease is vital for timely management and intervention.

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