Assertion: foot drop | /r/CreatedBy | an overgrowth of bone
Facets:
value: by cyst
type: OTHER
value: by a tumor
type: OTHER
value: sometimes
type: TEMPORAL
value: in the spinal canal
type: LOCATION
Source sentences:
text: Foot drop is sometimes caused by an overgrowth of bone in the spinal canal or by a tumor or cyst pressing on the nerve in the knee or spine.