Adrenoleukodystrophy (ALD)
https://onlinelibrary.wiley.com/doi/10.1002/cns3.70064
This study examines how brain MRI scans may help doctors detect X-linked adrenoleukodystrophy (ALD) earlier in both children and adults. ALD is a rare inherited disorder that damages the brain and nervous system because harmful fatty substances build up in the body. Some forms of ALD can progress rapidly, therefore early diagnosis is essential for treatment and disease management. Researchers reviewed 1,189 MRI scans from 218 male patients with ALD seen at Massachusetts General Hospital between 2005 and 2024. They focused on changes in the corticospinal tract (CST), which helps control movement, and on changes in the cerebellum, which is involved in balance and coordination. The study found that isolated CST lesions (damaged tissue) occurred in both children and adults and could appear as early signs of disease, even before more typical brain changes developed. This challenges the previous belief that these lesions were mainly linked to adult forms of ALD. The researchers also found that cerebellar lesions almost always appeared alongside CST lesions, suggesting these brain changes may represent different stages of the same disease process rather than separate disease types. Importantly, many children who received treatments such as gene therapy or stem cell transplantation showed improvement on follow-up MRI scans. These findings suggest that carefully checking the CST during routine MRI screening could help identify ALD earlier and support faster treatment decisions, potentially improving long-term outcomes for patients.