Purpose: To report a case of peripheral ulcerative keratitis secondary to atypical hemolytic uremic syndrome.
Methods: We report the case of a 76-year-old man who presented with bilateral aggressive peripheral ulcerative keratitis. Clinical examinations and investigations are reported from the patients' admission.
Results: The patient had an extended workup for autoimmune and infectious etiologies that all returned negative. The laboratory work in conjunction with renal biopsy and clinical symptoms were consistent with atypical hemolytic uremic syndrome. The patient was treated with systemic steroids for his peripheral ulcerative keratitis and underlying systemic disease. Corneal glueing and amniotic membrane grafting was also performed.
Conclusions: To our knowledge, we report the first known case of peripheral ulcerative keratitis secondary to atypical hemolytic uremic syndrome. In cases where the standard workup is negative, this diagnosis should be considered because it can have significant systemic morbidity.
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