An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report

Introduction: Stickler syndrome is a rare collagenopathy, caused by mutations in various genes coding for fibrillar collagens II, IX, and XI. The disorder can be subdivided into different groups, depending on the genes affected and clinical features found in patients. Ocular symptoms, suc...

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Main Authors: Tobias Peschaut, Monja Michelitsch, Martina Brandner, Sandra Kamper, Lisa Ofner-Ziegenfuss, Jasmin Blatterer, Heidelis Anna Tichy, Laura Posch-Pertl
Format: Article
Language:English
Published: Karger Publishers 2025-01-01
Series:Case Reports in Ophthalmology
Online Access:https://karger.com/article/doi/10.1159/000542708
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author Tobias Peschaut
Monja Michelitsch
Martina Brandner
Sandra Kamper
Lisa Ofner-Ziegenfuss
Jasmin Blatterer
Heidelis Anna Tichy
Laura Posch-Pertl
author_facet Tobias Peschaut
Monja Michelitsch
Martina Brandner
Sandra Kamper
Lisa Ofner-Ziegenfuss
Jasmin Blatterer
Heidelis Anna Tichy
Laura Posch-Pertl
author_sort Tobias Peschaut
collection DOAJ
description Introduction: Stickler syndrome is a rare collagenopathy, caused by mutations in various genes coding for fibrillar collagens II, IX, and XI. The disorder can be subdivided into different groups, depending on the genes affected and clinical features found in patients. Ocular symptoms, such as high myopia, retinal detachments, or anomalies in the vitreous, are present in most forms of Stickler syndrome. In this case report, we present a patient with an unusual retinal phenotype. Case Presentation: Subject of this case report is a 33-year-old woman, who was examined at the Department of Ophthalmology at Medical University of Graz. A thorough ophthalmological examination was conducted, detailed medical and family history acquired, and genetic testing performed. Best corrected visual acuity was 20/20 on both eyes; however, impaired binocular vision associated with intermittent exotropia was found. Furthermore, dilated fundoscopy showed an unusual, hypopigmented spotted retinal phenotype. Fundus autofluorescence showed multiple hyperfluorescent spots corresponding with the spotted retinal appearance. Genetic testing revealed a novel variant in the gene COL11A1. No other ocular abnormalities which are associated with COL11A1 were found. Conclusion: Several subtypes of Stickler syndrome have been reported in medical literature, greatly varying in clinical manifestations. Many different mutations in the gene COL11A1 have been discovered and are typically associated with Stickler syndrome type 2. To our best knowledge, this is the first report of a patient with a mutation in the COL11A1 gene presenting with a hypopigmented spotted retina.
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spelling doaj-art-8e0a4b53c1cf49be919ebe3ad0e9acfc2025-08-20T03:09:47ZengKarger PublishersCase Reports in Ophthalmology1663-26992025-01-01161626710.1159/000542708An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case ReportTobias PeschautMonja MichelitschMartina BrandnerSandra KamperLisa Ofner-ZiegenfussJasmin BlattererHeidelis Anna TichyLaura Posch-Pertl Introduction: Stickler syndrome is a rare collagenopathy, caused by mutations in various genes coding for fibrillar collagens II, IX, and XI. The disorder can be subdivided into different groups, depending on the genes affected and clinical features found in patients. Ocular symptoms, such as high myopia, retinal detachments, or anomalies in the vitreous, are present in most forms of Stickler syndrome. In this case report, we present a patient with an unusual retinal phenotype. Case Presentation: Subject of this case report is a 33-year-old woman, who was examined at the Department of Ophthalmology at Medical University of Graz. A thorough ophthalmological examination was conducted, detailed medical and family history acquired, and genetic testing performed. Best corrected visual acuity was 20/20 on both eyes; however, impaired binocular vision associated with intermittent exotropia was found. Furthermore, dilated fundoscopy showed an unusual, hypopigmented spotted retinal phenotype. Fundus autofluorescence showed multiple hyperfluorescent spots corresponding with the spotted retinal appearance. Genetic testing revealed a novel variant in the gene COL11A1. No other ocular abnormalities which are associated with COL11A1 were found. Conclusion: Several subtypes of Stickler syndrome have been reported in medical literature, greatly varying in clinical manifestations. Many different mutations in the gene COL11A1 have been discovered and are typically associated with Stickler syndrome type 2. To our best knowledge, this is the first report of a patient with a mutation in the COL11A1 gene presenting with a hypopigmented spotted retina. https://karger.com/article/doi/10.1159/000542708
spellingShingle Tobias Peschaut
Monja Michelitsch
Martina Brandner
Sandra Kamper
Lisa Ofner-Ziegenfuss
Jasmin Blatterer
Heidelis Anna Tichy
Laura Posch-Pertl
An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
Case Reports in Ophthalmology
title An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
title_full An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
title_fullStr An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
title_full_unstemmed An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
title_short An Unusual Retinal Presentation of a Novel COL11A1 Mutation: A Case Report
title_sort unusual retinal presentation of a novel col11a1 mutation a case report
url https://karger.com/article/doi/10.1159/000542708
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