[Unidentified bright objects and neuropsychiatric disturbances].

Area of Science:

• Neurocutaneous disorders
• Neuroimaging
• Pediatric neurology

Context:

• Neurofibromatosis type 1 (NF1) is a genetic disorder with variable clinical manifestations.
• Unidentified bright objects (UBOs) on MRI are common in NF1 but their clinical significance is debated.
• Longitudinal studies are needed to understand the evolution of UBOs and their impact.

Purpose:

• To investigate the correlation between UBOs and neuropsychiatric outcomes in children with NF1.
• To observe the long-term changes in UBOs using serial MRI.
• To evaluate the utility of early brain MRI in NF1 diagnosis and management.

Summary:

• This study analyzed 100 pediatric NF1 patients, correlating brain MRI findings with clinical data.
• UBOs were detected in 72% of patients and tended to decrease over time.
• Significant correlations were found between UBOs and motor disturbances (P=0.004), cognitive deficits (P=0.016), and neuropsychiatric follow-up (P=0.027).

Impact:

• Brain MRI, specifically T2 hyperintensities (T2H), can be a predictive tool for neuropsychiatric disorders in NF1.
• Findings support the inclusion of early brain MRI in the diagnostic protocol for NF1.
• This research aids in understanding the neurobiological underpinnings of NF1 and guides clinical management.