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Updated: Jun 5, 2026

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Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
Deep grey matter T2 hypo-intensity in patients with paediatric multiple sclerosis
Antonia Ceccarelli1, Maria A Rocca, Elisabetta Perego
1Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, Scientific Institute and University Ospedale San Raffaele, Via Olgettina 60, Milan, Italy.
Summary
Quantifying deep grey matter T2 hypo-intensities in pediatric patients with multiple sclerosis (MS) or clinically isolated syndromes (CIS) may indicate neurodegeneration. These iron-related changes in deep grey matter are likely secondary to white matter damage.
Area of Science:
- Neurology
- Radiology
- Pediatrics
Background:
- T2 hypo-intensity on MRI may indicate pathological iron deposition.
- Deep grey matter (DGM) involvement is increasingly recognized in pediatric multiple sclerosis (MS).
Purpose of the Study:
- To evaluate the utility of quantifying DGM T2 hypo-intensities in pediatric patients with MS or CIS.
- To assess changes in DGM T2 hypo-intensities over one year.
Main Methods:
- A dual-echo MRI sequence was used in 45 pediatric patients (MS/CIS) and 14 healthy controls (HC).
- Normalized T2 intensity in the basal ganglia and thalamus was quantified.
- Eleven patients underwent a one-year follow-up assessment.
Main Results:
- DGM T2 intensity was similar between pediatric patients and HC, except for the left caudate nucleus head.
- Adolescent-onset pediatric patients showed reduced T2 intensity in the left caudate nucleus head compared to HC.
- Left caudate nucleus head T2 intensity correlated with T2 lesion volume and remained stable over one year.
Conclusions:
- Quantification of DGM T2 intensity may serve as a surrogate marker for neurodegeneration in pediatric patients.
- Iron-related changes in DGM in pediatric MS are likely secondary to white matter damage.

