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Brain malformations in linear nevus sebaceous syndrome: an MR study
1Department of Radiology, University of Illinois College of Medicine, Chicago.
Journal of Computer Assisted Tomography
|March 1, 1988
Summary
A teenage girl with linear nevus sebaceous syndrome experienced brain malformations on the same side of her body. Imaging revealed unilateral megalencephaly and frontal lobe pachygyria, highlighting a rare association.
Area of Science:
- Neurology
- Dermatology
- Medical Genetics
Background:
- Linear nevus sebaceous syndrome is a rare congenital disorder characterized by the presence of nevus sebaceous, typically on the face or scalp.
- It can be associated with extracutaneous manifestations affecting various organ systems, including the central nervous system.
Observation:
- A 16-year-old female presented with unilateral linear nevus sebaceous syndrome.
- She also exhibited ipsilateral (same-sided) brain malformations.
Findings:
- The brain malformations included unilateral megalencephaly (enlarged brain hemisphere).
- Magnetic resonance imaging (MRI) demonstrated white matter hypoplasia, excessive gray matter, deficient sulcation, and focal pachygyria (thickened, simplified gyri) in the frontal lobe.
- These findings indicate a significant neurodevelopmental impact associated with the syndrome.
Implications:
- This case underscores the importance of thorough neurological evaluation in patients with linear nevus sebaceous syndrome.
- The specific pattern of brain malformations may offer insights into the underlying pathogenetic mechanisms of this rare syndrome.
- Further research is warranted to understand the full spectrum and long-term outcomes of central nervous system involvement.