Updated Systematic Review and Clinical Spectrum of Peripheral Exudative Hemorrhagic Chorioretinopathy

Peripheral exudative hemorrhagic chorioretinopathy (PEHCR) is a rare retinal vasculopathy that might cause subretinal and/or vitreous hemorrhages. Although the primary etiology is still unknown, choroidal neovascularization is mainly involved in the pathogenesis. The main risk factors are age and systemic hypertension. Ancillary testing such as fluorescein angiography, indocyanine green angiography and ultrasonography can be of great value for diagnosing this entity and distinguishing PEHCR from other lesions as choroidal melanoma and retinal vasoproliferative tumor. Various treatments have been reported including photocoagulation, cryotherapy, intravitreal injection of anti-vascular endothelial growth factor (Anti-VEGF) and surgical intervention as pars plana vitrectomy. This review handles an up-to-date perspective regarding PEHCR.