HYPOMYELINATING LEUKODYSTROPHY TYPE 10 IN AN ADULT: CASE REPORT
Abstract
OBJECTIVE: To describe a rare case of late-onset hypomyelinating leukodystrophy type 10 in an adult, highlighting clinical, diagnostic, and therapeutic aspects in correlation with the literature. METHODOLOGY: Observational, cross-sectional, and descriptive case report based on home visits, medical record analysis, and complementary examinations, associated with a literature review. The study was approved by the Research Ethics Committee, with informed consent obtained. RESULTS: A 51-year-old man presented with progressive spastic paraparesis, dysarthria, and dysphagia. Imaging examinations revealed hypomyelination and cortical atrophy, while whole-exome sequencing identified a homozygous variant in the PYCR2 gene. Management was symptomatic and multidisciplinary, with limited response. An atypical phenotype was observed, with late onset, slow progression, and preserved cognition. FINAL CONSIDERATIONS: The case broadens the phenotypic spectrum and reinforces the importance of clinical-radiological and molecular integration for diagnosis and management.
References
Köhler w, Curiel j, Vanderver a. Adulthood Leukodystrophies. Nat Rev Neurol. 2018 feb;14(2):94-105. epub 2018 jan 5 DOI: https://doi.org/10.1038/nrneurol.2017.175 DOI: https://doi.org/10.1038/nrneurol.2017.175
Hosseini sa, Ghelichi-ghojogh m. Mutation in pycr2 gene and hypomyelinating leukodystrophy in children: a case report study. ann med surg (lond). 2023 apr 15;85(5):2177-2179. pmid: 37228935; pmcid: pmc10205227 DOI: https://doi.org/10.1097/ms9.0000000000000684 DOI: https://doi.org/10.1097/MS9.0000000000000684
Gagnier jj, Kienle g, Altman dg, Moher d, Sox h, Riley d; Care group. The care guidelines: consensus-based clinical case reporting guideline development. j clin epidemiol. 2014 jan;67(1):46-51 DOI: https://doi.org/10.1016/j.jclinepi.2013.08.003 DOI: https://doi.org/10.1016/j.jclinepi.2013.08.003
Xie jj, Ni w, Wei q, Wu zy. Spastic paraplegia as the only symptom in two adult-onset patients carrying a novel pathogenic variant in pycr2. eur j neurol. 2021 feb;28(2):e17-e19. epub 2020 oct 17. pmid: 32920934 DOI: https://doi.org/10.1111/ene.14530 DOI: https://doi.org/10.1111/ene.14530
Zaki ms, Bhat g, Sultan t, Issa m, Jung hj, Dikoglu e, et al. pycr2 mutations cause a lethal syndrome of microcephaly and failure to thrive. ann neurol. 2016 jul;80(1):59-70. epub 2016 jun 1. pmid: 27130255; pmcid: pmc4938747 DOI: https://doi.org/10.1002/ana.24678 DOI: https://doi.org/10.1002/ana.24678
