J Korean Neurol Assoc.  2015 Nov;33(4):324-327. 10.17340/jkna.2015.4.15.

Micrographia after Midbrain Tegmental Infarction

Affiliations
  • 1Department of Neurology, Dankook University College of Medicine, Cheonan, Korea. nrdoc@dku.edu

Abstract

Micrographia is an abnormal reduction in writing size that is a specific behavioral deficit associated with Parkinson's disease. A 24-year-old right-handed woman presented with sudden-onset right-hand micrographia. Brain magnetic resonance imaging revealed an infarction of the right tegmentum of the lower midbrain. The mechanism of micrographia caused by pure midbrain tegmental infarction remains unclear. This case could provide evidence of the functional anatomy of a direct connection between the cerebellum and basal ganglia through the midbrain.

Keyword

Micrographia; Midbrain; Basal ganglia

MeSH Terms

Basal Ganglia
Brain
Cerebellum
Female
Humans
Infarction*
Magnetic Resonance Imaging
Mesencephalon*
Parkinson Disease
Writing
Young Adult
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