Developmental delay and assessment in an infant with PCWH syndrome: A case report

Peripheral demyelinating polyneuropathy, central dysmyelination, Waardenburg syndrome, and Hirschsprung’s disease is a rare genetic disorder caused by de novo variants in the SOX10 gene. The SOX10 gene is expressed in the neural crest cells during early embryonic development and in the glial cells o...

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Main Authors: Ashna Kumar, Michelle do Rosario, Shahyan Siddiqui, Divyani Garg, Anju Shukla, Suvasini Sharma
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2023-01-01
Series:Annals of Movement Disorders
Subjects:
Online Access:http://www.aomd.in/article.asp?issn=2590-3446;year=2023;volume=6;issue=2;spage=96;epage=99;aulast=Kumar
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author Ashna Kumar
Michelle do Rosario
Shahyan Siddiqui
Divyani Garg
Anju Shukla
Suvasini Sharma
author_facet Ashna Kumar
Michelle do Rosario
Shahyan Siddiqui
Divyani Garg
Anju Shukla
Suvasini Sharma
author_sort Ashna Kumar
collection DOAJ
description Peripheral demyelinating polyneuropathy, central dysmyelination, Waardenburg syndrome, and Hirschsprung’s disease is a rare genetic disorder caused by de novo variants in the SOX10 gene. The SOX10 gene is expressed in the neural crest cells during early embryonic development and in the glial cells of the peripheral and central nervous systems during late embryonic development, as well as in adults. Here, we describe our findings in a 9-month-old male infant presenting with failure to thrive, global developmental delay, seizures, hypotonia, heterochromia iridis, hypopigmented skin macules, pendular nystagmus, Hirschsprung’s disease, and hearing impairment. Nerve conduction studies were suggestive of sensorimotor demyelinating polyneuropathy. Brain magnetic resonance imaging showed diffuse hypomyelination. Targeted genetic testing revealed a novel stop-loss variant in the SOX10 gene (NM_006941.4). This case highlights the importance of clinical phenotyping that can aid in targeted genetic testing.
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spelling doaj.art-d6f41654c4e2429d8b44f90d986c9f092023-10-26T05:45:36ZengWolters Kluwer Medknow PublicationsAnnals of Movement Disorders2590-34462590-34542023-01-0162969910.4103/aomd.aomd_34_22Developmental delay and assessment in an infant with PCWH syndrome: A case reportAshna KumarMichelle do RosarioShahyan SiddiquiDivyani GargAnju ShuklaSuvasini SharmaPeripheral demyelinating polyneuropathy, central dysmyelination, Waardenburg syndrome, and Hirschsprung’s disease is a rare genetic disorder caused by de novo variants in the SOX10 gene. The SOX10 gene is expressed in the neural crest cells during early embryonic development and in the glial cells of the peripheral and central nervous systems during late embryonic development, as well as in adults. Here, we describe our findings in a 9-month-old male infant presenting with failure to thrive, global developmental delay, seizures, hypotonia, heterochromia iridis, hypopigmented skin macules, pendular nystagmus, Hirschsprung’s disease, and hearing impairment. Nerve conduction studies were suggestive of sensorimotor demyelinating polyneuropathy. Brain magnetic resonance imaging showed diffuse hypomyelination. Targeted genetic testing revealed a novel stop-loss variant in the SOX10 gene (NM_006941.4). This case highlights the importance of clinical phenotyping that can aid in targeted genetic testing.http://www.aomd.in/article.asp?issn=2590-3446;year=2023;volume=6;issue=2;spage=96;epage=99;aulast=Kumarhirschsprung’s diseasehypomyelinationpendular nystagmuswaardenburg syndrome
spellingShingle Ashna Kumar
Michelle do Rosario
Shahyan Siddiqui
Divyani Garg
Anju Shukla
Suvasini Sharma
Developmental delay and assessment in an infant with PCWH syndrome: A case report
Annals of Movement Disorders
hirschsprung’s disease
hypomyelination
pendular nystagmus
waardenburg syndrome
title Developmental delay and assessment in an infant with PCWH syndrome: A case report
title_full Developmental delay and assessment in an infant with PCWH syndrome: A case report
title_fullStr Developmental delay and assessment in an infant with PCWH syndrome: A case report
title_full_unstemmed Developmental delay and assessment in an infant with PCWH syndrome: A case report
title_short Developmental delay and assessment in an infant with PCWH syndrome: A case report
title_sort developmental delay and assessment in an infant with pcwh syndrome a case report
topic hirschsprung’s disease
hypomyelination
pendular nystagmus
waardenburg syndrome
url http://www.aomd.in/article.asp?issn=2590-3446;year=2023;volume=6;issue=2;spage=96;epage=99;aulast=Kumar
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AT michelledorosario developmentaldelayandassessmentinaninfantwithpcwhsyndromeacasereport
AT shahyansiddiqui developmentaldelayandassessmentinaninfantwithpcwhsyndromeacasereport
AT divyanigarg developmentaldelayandassessmentinaninfantwithpcwhsyndromeacasereport
AT anjushukla developmentaldelayandassessmentinaninfantwithpcwhsyndromeacasereport
AT suvasinisharma developmentaldelayandassessmentinaninfantwithpcwhsyndromeacasereport