Question

what spinal cord lesion preserves sacral sensation due to the spared peripheral tracts of the spinal cord? brown - sequard syndrome transverse cord lesion large central cord lesion anterior cord lesion

Explanation:

Large central cord lesions affect the central part of the spinal cord first, sparing the peripheral tracts that carry sacral sensory signals. This results in preserved sacral sensation, a pattern called sacral sparing. Other listed lesions do not cause this specific sparing pattern: Brown-Sequard affects one side, transverse lesions damage all tracts, and anterior cord lesions spare posterior (not peripheral sacral) tracts.

Answer:

Large central cord lesion