J Korean Soc Magn Reson Med.  2014 Dec;18(4):362-365. 10.13104/jksmrm.2014.18.4.362.

Isolated Weakness of Radial-side Fingers Due to a Small Cortical Infarction

Affiliations
  • 1Department of Neurology, School of Medicine, Kyung Hee University, Seoul, Korea. hsyoon96@medimail.co.kr

Abstract

Predominant involvement of a particular group of fingers due to a central nervous system lesion has been described as pseudoperipheral palsy. Two patients visited our hospital with isolated weakness of a particular group of fingers due to small cortical infarctions. A 51-year-old woman suddenly developed weakness in her left index and middle fingers. The brain MRI showed a small infarct in the right frontal cortex. A 67-year-old man was sudden difficulty using his chopsticks and had weakness in his right thumb and index finger. The brain MRI showed a small infarct in the left precentral cortex.

Keyword

Cortical infarction; Finger weakness; Topography

MeSH Terms

Aged
Brain
Central Nervous System
Female
Fingers*
Humans
Infarction*
Magnetic Resonance Imaging
Middle Aged
Paralysis
Thumb

Figure

  • Fig. 1 In case 1, a diffusion weighted (a), an apparent diffusion coefficient (b) and a T2 FLAIR (c) images showed an acute infarction on the right frontal cortex. (FLAIR: fluid attenuated inversion recovery)

  • Fig. 2 In case 2, a diffusion weighted (a), an apparent diffusion coefficient (b) and a T2 FLAIR (c) images showed an acute infarction on the left frontal cortex. (FLAIR: fluid attenuated inversion recovery)


Reference

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