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L-2-Hydroxyglutaric aciduria: MRI in seven cases

L D'Incerti1, L Farina, I Moroni

  • 1Department of Neuroradiology, Istituto Nazionale Neurologico C. Besta, Milan, Italy.

Neuroradiology
|December 22, 1998
PubMed
Summary

Magnetic resonance imaging (MRI) reveals characteristic signal abnormalities in L-2-Hydroxyglutaric aciduria (L-2-OHG aciduria), aiding in diagnosis. These findings in white matter and basal ganglia, along with cerebellar atrophy, are distinctive for this rare metabolic disorder.

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Area of Science:

  • Neurology
  • Radiology
  • Metabolic Disorders

Background:

  • L-2-Hydroxyglutaric aciduria (L-2-OHG aciduria) is a rare metabolic disorder.
  • Accurate diagnosis relies on identifying characteristic neuroimaging findings.

Purpose of the Study:

  • To describe and analyze the MRI findings in patients with L-2-OHG aciduria.
  • To compare these findings with existing literature and pathological data.
  • To determine the diagnostic utility of MRI in L-2-OHG aciduria.

Main Methods:

  • Retrospective analysis of MRI scans from 7 patients diagnosed with L-2-OHG aciduria.
  • Comparison with published neuroradiological and pathological reports.
  • Correlation of imaging findings with clinical presentation.

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Main Results:

  • MRI revealed signal abnormalities predominantly in the peripheral subcortical white matter, basal ganglia, and dentate nuclei.
  • Cerebellar atrophy was a consistent finding across the studied patients.
  • The specific distribution of signal abnormalities is highly characteristic of L-2-OHG aciduria.

Conclusions:

  • The described MRI pattern in L-2-OHG aciduria is distinctive.
  • Neuroimaging, particularly MRI, can suggest the diagnosis of L-2-OHG aciduria.
  • Characteristic findings aid in differentiating L-2-OHG aciduria from other metabolic disorders.