Clin Psychopharmacol Neurosci.  2015 Dec;13(3):324-326. 10.9758/cpn.2015.13.3.324.

A Case of Nasu-Hakola Disease without Fractures or Consanguinity Diagnosed Using Exome Sequencing and Treated with Sodium Valproate

  • 1Department of Neuropsychiatry, Ehime University Graduate School of Medicine, Toon, Japan.


Nasu-Hakola disease (NHD) is a rare autosomal recessive neuropsychiatric disorder characterized by bone cysts, fractures, and cognitive impairment. Two genes are responsible for the development of NHD; TYROBP and TREM2. Although it presents with typical signs and symptoms, diagnosing this disease remains difficult. This case report describes a male with NHD with no family or past history of bone fractures who was diagnosed using exome sequencing. His frontal lobe psychiatric symptoms recovered partially following treatment with sodium valproate, but not with an antipsychotic.


Nasu-Hakola disease; Exome sequencing; TYROBP (DAP12); TREM2; Frontal lobe symptoms; Sodium valproate
Full Text Links
  • CPN
  • Twitter
  • Facebook
Copyright © 2020 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: