Coma with diffuse white matter hemorrhages in juvenile diabetic ketoacidosis.

Cerebral edema is the most common neurologic complication of diabetic ketoacidosis in children. A minority of young patients with intracerebral crises in diabetic ketoacidosis present with cerebrovascular accidents. We report 2 adolescent patients with diabetic ketoacidosis who presented with coma and diffuse white matter hemorrhages in the absence of either cerebral edema or cerebrovascular accidents. These 2 cases illustrate a novel clinical and neuropathologic description of diffuse white matter hemorrhages, possibly related to a cytotoxic process as the underlying mechanism. These case descriptions emphasize that pediatric patients with diabetic ketoacidosis and coma can present with pathology not related to either cerebral edema or cerebrovascular accidents.