Brain MRI White Matter Abnormalities in Pediatric Non-Infectious Uveitis

Area of Science:

• Ophthalmology
• Neurology
• Pediatrics

Background:

• Childhood chronic non-infectious uveitis (cNIU) presents diagnostic challenges, with potential overlap with demyelinating diseases.
• Brain Magnetic Resonance Imaging (MRI) is crucial for evaluating neurological involvement in pediatric uveitis.

Purpose of the Study:

• To investigate the prevalence and characteristics of white matter abnormalities (WMA) in the brain MRI of children diagnosed with cNIU.
• To explore potential associations between WMA and clinical factors in pediatric cNIU.

Main Methods:

• A multicentric retrospective study analyzed brain MRI data from 123 children with cNIU across pediatric rheumatology and ophthalmology units.
• Demographic, clinical, laboratory, and imaging data were collected, with WMA on brain MRI as the primary outcome measure.

Main Results:

• White matter abnormalities (WMA) were identified in 26.8% of the pediatric cNIU cohort (33 out of 123 patients).
• WMA were more prevalent in males and associated with non-anterior uveitis subtypes.
• While no demyelinating disease was diagnosed during follow-up, WMA were observed in 40% of patients with TINU and 27.3% with idiopathic uveitis.

Conclusions:

• Brain MRI may be a valuable tool in the assessment of pediatric cNIU, given the observed prevalence of WMA.
• The clinical significance and long-term prognosis of WMA in cNIU require further investigation through interdisciplinary evaluation and extended follow-up.