CT-negative, MRI GRE-positive primary motor cortex contusion causing isolated foot drop.

CONCLUSION: Central causes of foot drop are exceptionally rare, however, they should be considered in all cases of post-traumatic dorsiflexion paresis. The key to the accurate diagnosis is a high index of suspicion as well as thorough and careful physical examination including reflex and sensory testing. Selective imaging modalities such as MRI or CT can then be used to verify the diagnosis. PMID: 27904756 [PubMed - in process]
Source: Surgical Neurology International - Category: Neurosurgery Tags: Surg Neurol Int Source Type: research