Precocious puberty in two girls with PEHO syndrome: a clinical feature not previously described.

The authors present 2 girls with progressive encephalopathy, hypsarrhythmia, and optic atrophy syndrome. They describe a novel finding, precocious puberty, a feature not previously reported in this syndrome. The authors also present their clinical features and the results of investigations, including radiological findings, and compare the patients of this report to previously reported cases.