CASE REPORTS
JOURNAL ARTICLE
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Threatening Blindness in a Child With Typical Hemolytic Uremic Syndrome.

Pediatric Neurology 2021 September
BACKGROUND: Hemolytic uremic syndrome (HUS) is the most common cause of acute kidney failure in children younger than five years. Central nervous system involvement occurs in 15% of patients, with clinical manifestations including confusion, coma, seizures, stroke, and cortical blindness. Ocular involvement in children with HUS is rare, but retinal and choroidal hemorrhages as well as ischemic retinopathy due to thrombotic microangiopathic lesions have been documented.

PATIENT DESCRIPTION: We describe a 26-month-old girl with typical HUS who experienced severe visual loss likely resulting from cytotoxic injury of both lateral geniculate nuclei with bilateral damage to optic pathways coupled with macular thrombotic microangiopathic lesions. Her vision recovered completely within a month in conjunction with the normalization of her imaging studies.

CONCLUSIONS: Although this child's vision was severely impaired, the prognosis for this mixed visual impairment of peripheral and central origin was excellent with a full recovery.

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