PDE10A-associated childhood-onset chorea with bilateral striatal lesions

Neurodegenerative diseases

General description

PDE10A-associated childhood-onset chorea with bilateral striatal lesions is typically characterized by its onset in the teenage years, presenting as slowly progressive chorea. As the disease progresses, abnormal movements become apparent, with dysarthria observed in the majority of cases. Although the typical onset is in childhood, this disease can also appear in the elderly.

Striatal lesion (Adult)

  • Caudate nucleus
  • Putamen
Symmetric
Bilateral
T2WI
Hyperintensity
FLAIR
Hyperintensity
Bilateral
Morphology
Atrophy

On MRI, T2WI and FLAIR demonstrate bilateral hyperintensity in the striatum. In adults, imaging studies reveal bilateral striatal atrophy without diffusion restriction.

Striatal lesion (Pediatric)

  • Caudate nucleus
  • Putamen
Symmetric
Bilateral
T2WI
Hyperintensity
FLAIR
Hyperintensity
Bilateral
Morphology
Enlargement / swelling
DWI
Hyperintensity

On MRI, T2WI and FLAIR demonstrate bilateral hyperintensity in the striatum. In pediatric cases with a short onset course, there may be diffusion restriction and swelling in the striatum.