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The neuropsychiatric manifestations of Huntington's disease-like 2

Christopher A Fischer1, Eliot A Licht, Mario F Mendez

  • 1Department of Psychiatry, David Geffen School of Medicine at the University of California at Los Angeles, USA. Cfischer@mednet.ucla.edu

The Journal of Neuropsychiatry and Clinical Neurosciences
|December 11, 2012
PubMed

Insights

Huntington's disease-like 2 (HDL2) presents similarly to Huntington's disease (HD) but has a different genetic cause. Recognizing HDL2's psychiatric symptoms is crucial for diagnosis and management.

Area of Science:

  • Neuroscience
  • Genetics
  • Psychiatry

Background:

  • Huntington's disease-like 2 (HDL2) is a rare, inherited neurodegenerative disorder.
  • HDL2 clinically mimics Huntington's disease (HD) but stems from a distinct genetic mutation.
  • Understanding HDL2's unique presentation is vital for accurate diagnosis and patient care.

Observation:

  • This study details a patient with HDL2 requiring psychiatric hospitalization.
  • Common neuropsychiatric manifestations include depression, irritability, aggression, and frontal lobe personality changes.
  • These symptoms are comparable to those observed in classic Huntington's disease.

Findings:

  • HDL2 patients may exhibit fewer obsessive-compulsive behaviors, suicides, antisocial acts, and sexual changes compared to HD patients.
  • The genetic basis of HDL2 differs from the mutation causing Huntington's disease.
  • Psychiatric symptoms are key indicators for considering HDL2.

Implications:

  • Clinicians must recognize the psychiatric features of HDL2 for timely diagnosis.
  • Awareness of HDL2's distinct features aids in differentiating it from Huntington's disease.
  • Genetic testing and targeted behavioral management are essential for HDL2 patients.

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