The earliest MR imaging and proton MR spectroscopy abnormalities in adult-onset Krabbe disease

C Wang1, A Melberg, J Weis

  • 1Department of Radiology, Uppsala University, Uppsala, Sweden.

Abstract

Insights

Early magnetic resonance imaging (MRI) and spectroscopy (MRS) in adult-onset Krabbe disease reveal upper corticospinal tract involvement. Thinning of the spinal cord is a novel finding in this rare leukodystrophy.

Area of Science:

  • Neurology
  • Radiology
  • Biochemistry

Background:

  • Adult-onset Krabbe disease, a rare leukodystrophy, has poorly documented MRI and MRS findings.
  • Early diagnosis is crucial for managing this progressive neurological disorder.

Observation:

  • A 28-year-old woman with spastic paraparesis and gait issues underwent brain and cervical spine MRI and proton MRS.
  • MRI showed abnormalities in the upper corticospinal tracts and splenium.
  • MRS revealed altered metabolites in affected areas, including decreased N-acetylaspartate and probable elevated lactate.

Findings:

  • Early involvement of the upper corticospinal tracts is indicated by MR imaging.
  • Metabolic changes in the corticospinal tract include decreased creatine, choline, N-acetylaspartate, and glutamate.
  • A thin spinal cord was observed, a finding not previously reported in Krabbe disease.

Implications:

  • These findings suggest that upper corticospinal tract changes are an early indicator of adult-onset Krabbe disease.
  • Spinal cord thinning represents a new potential diagnostic marker.
  • Further research into early MR manifestations can improve diagnostic accuracy and patient outcomes.

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