Journal of the Korean Society of Magnetic Resonance in Medicine  2014;18(4):362-365

doi:10.13104/jksmrm.2014.18.4.362

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

Kyoung Jin HWANG 1 ; Key Chung PARK ; Dae Il CHANG ; Sung Sang YOON

Affiliations

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Keywords

Cortical infarction; Finger weakness; Topography

Country

Republic of Korea

Language

English

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.