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Extensive brain calcification in two children with bilateral Coats' disease.

We report two children with bilateral Coats' disease associated with cerebral calcifications in the basal ganglia and deep white matter, asymptomatic at the time of their discovery. Cerebellar ataxia developed secondarily in one of them. Both children were born small for date and had febrile convulsive seizures. Three similar patients have been previously reported, two of them in the same sibship; the third reported patient died of aplastic anemia. Bilateral Coats' disease in children should prompt systematic CT scan in search of cerebral calcifications. If present, neurological and genetic prognosis should be cautious.