A young girl had anisometropia that on further examination revealed a retinal vascular malformation (retinal arteriovenous anastomoses) most consistent with Wyburn-Mason syndrome of the left eye (Figure). The involvement of only the superior hemisphere was atypical. The contralateral right eye was unremarkable. She had no other general medical issues and there was no family history of any eye disease.
Chin EK, Critser DB, Almeida DRP. Hemispheric Retinal Arteriovenous Anastomoses(Wyburn-Mason Syndrome). JAMA Ophthalmol. 2015;133(11):e151687. doi:10.1001/jamaophthalmol.2015.1687