Spinal Cord Hyperintensities in Neurofibromatosis Type 1: Are They the Cord Equivalent of Unidentified Bright Objects in the Brain?

Pediatric Neurology
Andrea D RüeggerGabriel Dabscheck

Abstract

Focal areas of T2 hyperintensity are seen on magnetic resonance imaging (MRI) in patients with neurofibromatosis type 1 (NF1). These lesions are commonly known as "unidentified bright objects" of the brain. We have seen similar lesions in the spinal cord of the same patient population. Our aim was to determine the prevalence and characterize the imaging features of these T2 hyperintense spinal cord lesions in children with NF1. A search of our hospital's medical imaging database yielded all children with NF1 and MRI of the brain and/or spine between February 2014 and April 2017. Medical imaging was reviewed for T2 hyperintense signal changes and medical records were reviewed of those children with T2 hyperintense spinal cord lesions. During the study period 155 children underwent a brain MRI and 72 had a spine MRI. One hundred twenty-three (79%) showed multiple cerebral T2 hyperintense lesions and six (8%) had non-contrast enhancing spinal cord T2 hyperintensities with five children having had a follow-up scan. The one child without follow-up imaging was not further pursued. Interval scanning showed stable appearance of the spinal cord lesions in four children and signal reduction in one child. All five children with T2 hyperin...Continue Reading

Citations

May 3, 2020·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Michael Bayat, Allan Bayat

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