Isolated Shoulder Weakness due to a Small Cortical Infarction.
Hyeon-Uk Nah1, Hee Kyung Park, Dong-Wha Kang
1Department of Neurology, University of Ulsan College of Medicine, Seoul, Korea.
Journal of Clinical Neurology (Seoul, Korea)
|April 17, 2010
Summary
Small strokes in the brain
Area of Science:
- Neurology
- Neuroscience
- Cerebrovascular Diseases
Background:
- Cortical infarctions can cause localized motor deficits.
- Isolated hand or finger weakness following a stroke is documented.
- Isolated shoulder weakness is an exceptionally uncommon presentation.
Purpose of the Study:
- To report a rare case of isolated shoulder weakness.
- To identify the specific brain region responsible for this deficit.
Main Methods:
- Clinical case presentation.
- Neuroimaging analysis (MRI/CT).
- Neurological examination.
Main Results:
- A patient presented with isolated weakness of the shoulder.
- The cause was identified as a small cortical infarction.
- The infarction was located in the medial precentral gyrus.
Conclusions:
- The medial precentral gyrus is critical for shoulder motor control.
- Small cortical lesions can lead to highly specific neurological deficits.
- This case highlights the importance of precise lesion localization in stroke.
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