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  • Title: FAMILIAL EXUDATIVE VITREOTINOPATHY-LIKE FEATURES IN STICKLER TYPE IV ASSOCIATED WITH NOVEL VARIANTS IN COL9A1.
    Author: Alsubaie HF, Magliyah MS, AlRaddadi O, AlZaid A, Nowilaty SR.
    Journal: Retin Cases Brief Rep; 2023 Mar 01; 17(2):206-211. PubMed ID: 33973556.
    Abstract:
    BACKGROUND/PURPOSE: To report a case of Stickler Type IV with familial exudative vitreoretinopathy phenotype. METHODS: Retrospective case report. RESULTS: A 24-year-old woman presented with right eye exotropia and decreased vision. She had no facial or typical retinal features of Stickler syndrome but complained of right-sided hearing loss and right-sided neck pain. Examination of the right eye showed a chronic combined exudative and traction retinal detachment with temporal retinal dragging associated with far temporal retinal exudations and fibrovascular proliferations. The left eye had an attached retina with large areas of peripheral temporal retinal nonperfusion on fluorescein angiography, sharply demarcated by end circulation vascular pruning and mild peripheral vascular leakage, consistent with familial exudative vitreoretinopathy phenotype. Genetic analysis identified two heterozygous c.1052C>A and c.1349A>G variants in COL9A1, but did not disclose any mutation in genes classically associated with familial exudative vitreoretinopathy. CONCLUSION: Familial exudative vitreoretinopathy-like retinal vascular features can be the presenting sign in patients with Stickler syndrome Type IV.
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