A 34 year old man developed right lower leg weakness following a gunshot would. Axial CT scan of the head.

Note the metal fragment in the left upper scan in the medial frontal lobe. In the remaining scans, there is hypodensity affecting the distribution of the anterior cerebral artery. As the anterior cerebral artery supplies the medial frontal lobe, the contralateral leg is predominantly affected.

Revised 04/23/06.
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