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CASE REPORTS
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Dilated iris vasculature in the setting of the neonatal hypoxic encephelopathy.
Seminars in Ophthalmology 2015 July
The differential diagnosis of dilated iris vasculature in a neonate includes retinopathy of prematurity with anterior segment plus disease, persistent fetal vasculature, intrauterine cocaine exposure, maternal diabetes, and other pathologies associated with iris neovascularization and ischemia seen in adult populations, such as central retinal vein occlusions, ocular ischemic syndrome, and chronic retinal detachment. We present neonatal hypoxic ischemic encephalopathy as a new etiology of dilated iris vasculature in a male baby who suffered a large in-utero brain vasculature insult three weeks prior to delivery but with normal fundi, no risk factors for retinopathy of prematurity (normal birth weight, and gestational age), and no other explanatory etiologies. The mechanism of the dilated iris vasculature is likely also ischemic and therefore its presence likely portends a poor prognosis. We recommend that the neonatologist evaluate for this sign for this reason and consult ophthalmology to ensure its correct etiology.
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