دورية أكاديمية

Detailed Phenotype Supports Pathogenicity of Hypomorphic Variant in ABCC6 -Associated Pattern Dystrophy.

التفاصيل البيبلوغرافية
العنوان: Detailed Phenotype Supports Pathogenicity of Hypomorphic Variant in ABCC6 -Associated Pattern Dystrophy.
المؤلفون: Tsui JC; Scheie Eye Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.; Department of Ophthalmology, Veterans Affairs New Jersey Healthcare System, East Orange, NJ, USA., Aleman TS; Scheie Eye Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.; Center for Advanced Retinal and Ocular Therapeutics (CAROT), University of Pennsylvania, Philadelphia, PA, USA.; Division of Ophthalmology, Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA., Tapino PJ; Scheie Eye Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA., Kim BJ; Scheie Eye Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
المصدر: Case reports in ophthalmology [Case Rep Ophthalmol] 2024 Jun 12; Vol. 15 (1), pp. 497-506. Date of Electronic Publication: 2024 Jun 12 (Print Publication: 2024).
نوع المنشور: Case Reports; Journal Article
اللغة: English
بيانات الدورية: Publisher: Karger AG Country of Publication: Switzerland NLM ID: 101532006 Publication Model: eCollection Cited Medium: Print ISSN: 1663-2699 (Print) Linking ISSN: 16632699 NLM ISO Abbreviation: Case Rep Ophthalmol Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel : Karger AG
مستخلص: Introduction: We report a case of pseudoxanthoma elasticum (PXE) with an atypical phenotype likely related to a hypomorphic variant in ABCC6 .
Case Presentation: A 66-year-old Caucasian female with a history of a maculopathy interpreted as either age-related macular degeneration or a pattern dystrophy underwent a detailed ophthalmic evaluation. Visual acuities were 20/25, OD, and 20/20, OS. Spectral domain optical coherence and fluorescein angiography demonstrated outer retinal disruptions and breaks in retinal pigment epithelium (RPE)/Bruch's membrane bilaterally, consistent with angioid streaks. A large area of hypo- and hyperautofluorescence extending from the central retina into the peripapillary retina was documented with short-wavelength excitation autofluorescence. The area of hypoautofluorescence, which was much larger on near-infrared excitation, spared the temporal retina. Two-color dark-adapted perimetries documented severe rod sensitivity losses and less severe cone sensitivity abnormalities co-localizing with the RPE abnormalities. No obvious skin findings were observed, and initial dermatologic biopsy was negative. Gene screening identified a pathogenic ABCC6 gene variant c.1552C>T and a previously reported variant of uncertain significance c.1171A>G. A second dermatologic biopsy demonstrated positive findings consistent with PXE.
Conclusion: Although this patient had minimal skin findings, this patient had characteristic structural and functional abnormalities of a pattern dystrophy with angioid streaks and histologic evidence of PXE, suggesting compound heterozygous variants involving the hypomorphic ABCC6 c.1171A>G variant. These findings support the pathogenic role of both variants.
Competing Interests: The authors have no financial disclosures.
(© 2024 The Author(s). Published by S. Karger AG, Basel.)
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فهرسة مساهمة: Keywords: ABCC6; Angioid streaks; Case report; Pattern dystrophy; Pseudoxanthoma elasticum
تواريخ الأحداث: Date Created: 20240717 Latest Revision: 20240718
رمز التحديث: 20240718
مُعرف محوري في PubMed: PMC11250126
DOI: 10.1159/000538045
PMID: 39015234
قاعدة البيانات: MEDLINE
الوصف
تدمد:1663-2699
DOI:10.1159/000538045