Homozygous Val6Gly Variation in PRDM5 Gene Causing Brittle Cornea Syndrome: A New Turkish Case

[摘要] Introduction: Brittle cornea syndrome (BCS) is a rare connective tissue disorder with ocular and systemic features. Extreme corneal thinning and fragility are the main hallmarks of BCS. Case Report:G, p.(Val6Gly) variation was identified in the PRDM5 gene. Discussion: p.(Val6Gly) variation in PRDM5 was previously reported in 2 patients with BCS. We also considered PRDM5G, p.(Val6Gly) variation as pathogenic based on the following features: the absence of the variation in population databases, in silico predictions, segregation analysis, and clinical signs of our patient. Extremely thin and brittle corneas lead to corneal perforation spontaneously or after minor trauma. Nearly all patients have lost their vision because of corneal rupture and scars. The key challenge in the management of BCS is the prevention of ocular rupture which relies on early diagnosis. Early diagnosis allows for taking prompt measures to prevent ocular rupture.

[学科分类] 基础医学

[关键词] Brittle cornea syndrome;PRDM5;ZNF469;Corneal rupture;Corneal fragility