Clinical and MRI Evaluation of Children with Leukodystrophies

Introduction: Leukodystrophies are a diverse group of rare, inherited neurodegenerative disorders affecting the brain’s white matter, leading to progressive neurological impairment. Magnetic Resonance Imaging (MRI) plays a crucial role in diagnosing these conditions, offering detailed insight into white matter abnormalities and aiding in distinguishing various leukodystrophies. Objective: This study aims to evaluate children with leukodystrophies using MRI, establish accurate diagnoses, assess the severity and extent of white matter lesions, and demonstrate the different patterns of abnormal myelination. Methods: This prospective observational study was conducted in the Department of Radiodiagnosis and Imaging at Sher-I-Kashmir Institute of Medical Sciences, Srinagar, from June 2022 to June 2024. All children suspected of having white matter disorders based on clinical features and biochemical tests were included. MRI was performed to identify patterns of white matter involvement, and findings were correlated with clinical data. Results: A total of 29 children (age range: 2 months to 18 years) were evaluated. MRI findings revealed that demyelinating leukodystrophies were the most common, with symmetrical white matter involvement. Hypomyelinating disorders showed diffuse white matter changes with sparing of the U-fibers. Specific patterns, such as tigroid appearance in metachromatic leukodystrophy and posterior fossa involvement in Alexander disease, were identified. MRI was instrumental in narrowing down differential diagnoses and identifying characteristic patterns for various leukodystrophies. Conclusion: MRI is an invaluable tool in the diagnosis and management of leukodystrophies in children. It allows for early identification of disease patterns, which is critical for appropriate clinical management and potential therapeutic interventions. Further research is needed to explore the genetic basis of these disorders in the Kashmiri population.