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Updated: Jul 17, 2026
An In Vitro Model for the Study of Cellular Pathophysiology in Globoid Cell Leukodystrophy
Published on: October 21, 2014
[Diagnosis of Krabbe's leukodystrophy by transmission electron microscopy. Case report]
Hilda Villegas-Castrejón1, Alma Delia Hernández-Pérez, Sergio Peralta
1Departomento de Morfología Celular y Molecular, Torre de Investigación, Instituto Nacional de Rehabilitación, México, DF. hvillegas@cnr.gob.mx
Abstract:
Krabbe's leukodystrophy is a rare hereditary disease in Mexico. For that reason we report the case of an 11-year-old child. Ultrastructural studies of sural nerve biopsy specimen are described. Myelin sheaths were uniformly thin for the fiber diameters. Cytoplasm of Schwann cells exhibited a moderate dilatation with non-membrane masses with partly curvilinear, needle-shaped structures of variable length. The inclusions often had electron-dense or electron-lucent halos. These inclusions ultrastructurally represented Krabbe's leukodystrophy, and this method aids in the diagnosis in cases that are not available for genetic studies or special laboratory techniques. In this patient, diagnosis of Krabbe's disease was delayed and established several years after the initial symptoms. Electron microscopic examination of a sural nerve provided evidence for a diagnosis of Krabbe's leukodystrophy.
Insights
Krabbe
Area of Science:
- Neurology
- Genetics
- Pathology
Background:
- Krabbe's leukodystrophy is a rare, inherited neurological disorder.
- Diagnosis can be challenging, especially in regions with limited access to genetic testing.
Observation:
- A case study of an 11-year-old child with suspected Krabbe's disease.
- Sural nerve biopsy revealed thin myelin sheaths and characteristic cytoplasmic inclusions within Schwann cells.
Findings:
- Ultrastructural analysis identified needle-shaped, curvilinear structures within Schwann cells, consistent with Krabbe's leukodystrophy.
- Electron microscopy of nerve biopsy provides definitive diagnostic evidence.
Implications:
- This diagnostic method is valuable when genetic studies are unavailable.
- Early diagnosis is crucial for managing Krabbe's disease, despite delays in this case.
- Highlights the importance of ultrastructural pathology in diagnosing rare leukodystrophies.
