Venous Tortuosity in COL4A2-Associated Gould Syndrome

Ophthalmic Surg Lasers Imaging Retina. 2023 Sep;54(9):536-539. doi: 10.3928/23258160-20230811-01. Epub 2023 Aug 1.

Abstract

Mutations in collagen-encoding genes have been linked to numerous systemic diseases. Specifically, pathologic alterations in COL4A2 have been linked to Gould syndrome, a hereditary angiopathy affecting the brain, kidneys, and eyes. However, the ocular phenotype associated with COL4A2-associated disease has yet to be fully characterized. In this report, we describe a novel variant in COL4A2 identified in a 48-year-old woman and her 15-year-old daughter. Funduscopic examination demonstrated significant venous and arteriolar tortuosity. Genetic testing revealed a novel variant, c.2321G>A:p.(Gly774Glu), in COL4A2. This vascular phenotype is similar to the familial retinal arterial tortuosity seen in COL4A2-associated Gould syndrome with additional venous involvement. [Ophthalmic Surg Lasers Imaging Retina 2023;54:536-539.].

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Brain*
  • Collagen Type IV / genetics
  • Eye*
  • Female
  • Genetic Testing
  • Humans
  • Middle Aged
  • Mutation
  • Ophthalmoscopy
  • Syndrome

Substances

  • COL4A2 protein, human
  • Collagen Type IV