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MR Neuroimaging in Pediatric Inborn Errors of Metabolism
Journal article   Open access   Peer reviewed

MR Neuroimaging in Pediatric Inborn Errors of Metabolism

Lillian M Lai, Andrea L Gropman and Matthew T Whitehead
Diagnostics (Basel), Vol.12(4), p.861
03/30/2022
DOI: 10.3390/diagnostics12040861
PMCID: PMC9027484
PMID: 35453911
url
https://doi.org/10.3390/diagnostics12040861View
Published (Version of record) Open Access

Abstract

Inborn errors of metabolism (IEM) are a group of disorders due to functional defects in one or more metabolic pathways that can cause considerable morbidity and death if not diagnosed early. While individually rare, the estimated global prevalence of IEMs comprises a substantial number of neonatal and infantile disorders affecting the central nervous system. Clinical manifestations of IEMs may be nonspecific. Newborn metabolic screens do not capture all IEMs, and likewise, genetic testing may not always detect pathogenic variants. Neuroimaging is a critical component of the work-up, given that imaging sometimes occurs before prenatal screen results are available, which may allow for recognition of imaging patterns that lead to early diagnosis and treatment of IEMs. This review will demonstrate the role of magnetic resonance imaging (MRI) and proton magnetic resonance spectroscopy ( H MRS) in the evaluation of IEMs. The focus will be on scenarios where MRI and H MRS are suggestive of or diagnostic for IEMs, or alternatively, refute the diagnosis.
MRI spectroscopy inborn magnetic metabolism resonance errors Mrs.

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