Early-Onset Aicardi-Goutières Syndrome

Author:

Vanderver Adeline12,Prust Morgan3,Kadom Nadja4,Demarest Scott2,Crow Yanick J.56,Helman Guy2,Orcesi Simona7,Piana Roberta La8,Uggetti Carla9,Wang Jichuan10,Gordisch-Dressman Heather10,van der Knaap Marjo S.11,Livingston John H.12

Affiliation:

1. Center for Genetic Medicine Research, Children’s National Health System Washington, DC, USA

2. Department of Neurology, Children’s National Health System, Washington, DC, USA

3. Harvard Medical School, Harvard University, Boston, MA, USA

4. Department of Radiology, Children’s National Health System, Washington, DC, USA

5. Manchester Academic Health Science Centre, University of Manchester, Genetic Medicine, Manchester, United Kingdom

6. Department of Genetics, INSERM U781, Université Paris Descartes- Sorbonne Paris Cité, Institut Imagine, Hôpital Necker Enfants Malades (AP-HP), Paris, France

7. Child Neurology and Psychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy

8. Department of Neuroradiology, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada

9. Unit of Neuroradiology, Department of Radiology, San Carlo Borromeo Hospital, Milano, Italy

10. Department of Biostatistics, Children’s National Health System, Washington, DC, USA

11. Department of Child Neurology, VU University Medical Center, Amsterdam, the Netherlands

12. Department of Paediatric Neurology, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom

Abstract

Aicardi-Goutières syndrome is an inherited leukodystrophy with calcifying microangiopathy and abnormal central nervous system myelination. As fewer diagnostic computed tomographic (CT) scans are being performed due to increased availability of magnetic resonance imaging (MRI), there is a potential for missed diagnoses on the basis of calcifications. We review a series of patients with MRIs selected from IRB-approved leukodystrophy biorepositories to identify MRI patterns for recognition of early-onset Aicardi-Goutières syndrome and scored for a panel of radiologic predictors. Each individual predictor was tested against disease status using exact logistic regression. Features for pattern recognition of Aicardi-Goutières syndrome are temporal lobe swelling followed by atrophy with temporal horn dilatation, early global cerebral atrophy and visible calcifications, as evidenced by 94.44% of cases of Aicardi-Goutières syndrome correctly classified with a sensitivity of 90.9% and specificity of 96.9%. We identify a panel of MRI features predictive of Aicardi-Goutières syndrome in young patients that would differentiate it from other leukoencephalopathies.

Publisher

SAGE Publications

Subject

Clinical Neurology,Pediatrics, Perinatology, and Child Health

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