Pediatric Encephalopathy: Inherited Metabolic Disorders
Selima Siala1, Cesar Alves2, Carolina V Guimaraes3
1Division of Neuroradiology, Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Neuroimaging Clinics of North America
|July 3, 2026
Summary
Inherited metabolic disorders (IMDs) are rare genetic conditions often causing neurologic issues in children. Brain MRI helps diagnose IMDs by revealing specific patterns of white and gray matter involvement.
Area of Science:
- Neurology
- Radiology
- Genetics
Background:
- Inherited metabolic disorders (IMDs) are rare genetic conditions.
- Neurologic manifestations are common in infants and children with IMDs.
- Brain Magnetic Resonance (MR) imaging is crucial for diagnosing IMDs.
Purpose of the Study:
- To review the imaging phenotypes of IMDs.
- To discuss the principle of selective vulnerability in IMDs.
- To highlight the role of brain MR imaging in diagnosing IMDs.
Main Methods:
- Review of neuroimaging findings in IMDs.
- Correlation of imaging patterns with specific IMD types.
- Discussion of selective vulnerability principles.
Main Results:
- IMDs can affect white matter, gray matter, or both.
- Imaging findings include delayed myelination, hypomyelination, and encephalopathies.
- Specific imaging patterns can suggest particular IMDs.
Conclusions:
- Brain MR imaging is essential for diagnosing IMDs.
- Understanding imaging phenotypes and selective vulnerability aids diagnosis.
- IMDs present diverse brain imaging patterns.
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