Hemiconvulsion-Hemiplegia-Epilepsy syndrome associated with inflammatory-degenerative hystopathological findings in child with congenital adrenal hyperplasia

Domenico Serino, Francesca Diomedi Camassei, Olivier Delalande, Carlo E. Marras, Nicola Specchio, Federico Vigevano, Lucia Fusco

Research output: Contribution to journalArticle


Hemiconvulsion-Hemiplegia (HH) syndrome represents an uncommon consequence of prolonged unilateral clonic or hemiconvulsive status epilepticus in childhood, usually occurring during a febrile illness, followed by ipsilateral hemiplegia. The subsequent appearance of focal seizures configures the so called Hemiconvulsion-Hemiplegia-Epilepsy (HHE) syndrome. The pathogenesis of HH/HHE syndrome is still unclear. We describe the case of a 4 year-old girl with congenital adrenal hyperplasia (CAH) whom developed HH/HHE syndrome with drug resistant seizures at the age of 21 months and underwent left cerebral hemispherotomy at the age of 3 years and 6 months. Histopathological findings showed the presence of an underlying inflammatory-degenerative process. Disregulation of the inflammatory cascade has been proposed as one of the possible pathogenetic mechanisms underlying HH/HHE syndrome. To our knowledge however, this is the first report of an association with a histologically documented inflammatory process. The clinical and histopathological findings of our reported case lend support to the possible role of inflammation in the pathogenesis of HH/HHE syndrome.

Original languageEnglish
Pages (from-to)416-419
Number of pages4
JournalEuropean Journal of Paediatric Neurology
Issue number3
Publication statusPublished - 2014



  • Congenital adrenal hyperplasia
  • Hemiconvulsion-Hemiplegia-Epilepsy
  • Inflammation

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health
  • Medicine(all)

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