Syndromic or non-syndromic congenital ichthyosis? A case report of two brothers with ichthyosis but microphthalmia and blindness in only one brother
We present the cases of two brothers with ichthyosis, born to consanguineous parents, with the eldest having extracutaneous manifestations in the form of microphthalmia and corneal opacities causing complete blindness. Initially, we were faced with the question of whether the phenotype in this family was due to the effects of a single pleiotropic, presumably autosomal recessive gene manifesting as a syndromic form of ichthyosis, or whether there were multiple causal genes, and the ichthyosis was non-syndromic. Ultimately, clinical follow-up of the family, combined with research-based exome sequencing established a diagnosis of NIPAL4 autosomal recessive congenital ichthyosis in both brothers, but the ocular abnormalities causing blindness in the older brother were due to coexisting autosomal recessively inherited loss of function mutations in peroxidasin, the latter finding also seen in a sister unaffected by ichthyosis..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
SAGE Open Medical Case Reports - 12(2024) |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Rachel L Aubry [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
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| doi: |
10.1177/2050313X241231386 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ094738807 |
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| 520 | |a We present the cases of two brothers with ichthyosis, born to consanguineous parents, with the eldest having extracutaneous manifestations in the form of microphthalmia and corneal opacities causing complete blindness. Initially, we were faced with the question of whether the phenotype in this family was due to the effects of a single pleiotropic, presumably autosomal recessive gene manifesting as a syndromic form of ichthyosis, or whether there were multiple causal genes, and the ichthyosis was non-syndromic. Ultimately, clinical follow-up of the family, combined with research-based exome sequencing established a diagnosis of NIPAL4 autosomal recessive congenital ichthyosis in both brothers, but the ocular abnormalities causing blindness in the older brother were due to coexisting autosomal recessively inherited loss of function mutations in peroxidasin, the latter finding also seen in a sister unaffected by ichthyosis. | ||
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