[Retinal hemangioblastoma: Treatment strategy and long-term follow-up in a retrospective cohort]

Retinal hemangioblastoma (RH) is a benign vascular tumor frequently associated with Von Hippel-Lindau disease (VHL). Tumor growth of RH may lead to deterioration of visual acuity, which can be difficult to treat. Early diagnosis may reduce complication rate and side effects of treatment. The present retrospective study evaluates the long-term follow-up and complications of RH treatment as a function of the therapeutic strategy used.

The study included patients with RH, followed at Croix Rousse university hospital, Lyon between 2010 and 2017. The following clinical features were recorded : age at diagnosis, presenting symptom, presence of VHL disease, treatments used, post-therapeutic complications and visual outcomes.

Seven eyes of five patients were included in our study. Eighty percent of the patients had a mutation in the VHL gene. Four eyes (57%) were treated with laser photocoagulation and three eyes (43%) were treated with cryotherapy. The mean duration of follow-up was 35 months. One of the eyes treated using laser photocoagulation was complicated by an early epiretinal membrane with no visual consequence. Of the eyes treated by cryoapplication, one was complicated by a vitreous hemorrhage, and another by a rhegmatogenous retinal detachment, both of which resulted in a decrease in visual acuity.

The long-term outcome for patients treated for RH was relatively good. Complications were strongly correlated with the initial size of the vascular tumor. Early diagnosis seems to improve visual outcomes. Ophthalmologic monitoring should be part of the systemic, multidisciplinary management.