Isolated Hand or Finger Paresis Caused By Discrete Brain Pathologies

 Abstract— Acute isolated hand or finger paresis can be caused by stroke. However, early diagnosis of the acute isolated hand or finger paresis caused by stroke can be a challenge because it may bear peripheral features. We presented five cases of acute isolated hand or finger paresis caused by a brain lesion involving discrete locations. Brain MRI showed a pathology including the precentral gyrus, namely the 'cortical hand area', or in the subcortical area in the centrum semiovale of the corona radiata beneath the precentral gyrus, the posteriolateral thalamus and the posterior limb of internal capsule. The etiologies included acute ischemic infarct and brain tumor.