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Computed tomography (CT) in late infantile metachromatic leucodystrophy
P N Jayakumar1, S R Aroor, R K Jha
1Department of Neuroradiology, National Institute of Mental Health and Neurosciences, Bangalore, India.
Acta Neurologica Scandinavica
|January 1, 1989
Summary
Computed tomography (CT) reveals common white matter changes in late infantile metachromatic leukodystrophy (MLD). New CT findings include temporal lobe and cerebellar hypodensity, aiding diagnosis and differentiation from other leukodystrophies.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Metachromatic leukodystrophy (MLD) is a rare genetic disorder affecting white matter.
- Accurate diagnosis is crucial for management and understanding disease progression.
- Computed tomography (CT) is a key imaging modality for neurological disorders.
Purpose of the Study:
- To present the computed tomographic (CT) features of the late infantile form of metachromatic leukodystrophy (MLD).
- To identify common and previously unreported CT findings in MLD.
- To enhance the radiological differentiation of MLD from other dysmyelinating diseases.
Main Methods:
- Retrospective analysis of CT scans from 7 patients with late infantile MLD.
- Confirmation of MLD diagnosis through sural nerve biopsy.
- Detailed description of observed CT abnormalities.
Main Results:
- Diffuse symmetrical white matter hypodensity (low attenuation) of the cerebral parenchyma was a consistent finding.
- Hypodensity in the temporal lobes and cerebellar hemispheres were novel observations.
- Brainstem atrophy was present in three patients, independent of cerebral atrophy.
Conclusions:
- Recognizing the spectrum of CT features is vital for diagnosing MLD.
- CT imaging can aid in differentiating MLD from other central nervous system dysmyelinating disorders.
- Early and accurate radiological diagnosis facilitates timely clinical management.