A patient presents with loss of vibration and proprioception below T10 on the right side, and loss of pain and temperature below T10 on the left side, with right-sided upper motor neurone signs below the lesion. This pattern is consistent with damage at which level and side?

• A Left hemicord at T10
• B Anterior cord at T10
• C Right hemicord at T10 ✓
• D Central cord at T10

Explanation

Brown-Séquard syndrome (hemisection) at T10 on the right produces: ipsilateral (right) loss of DCML modalities (dorsal column lesion — ipsilateral below lesion), ipsilateral UMN signs (corticospinal tract — ipsilateral below lesion), and contralateral (left) loss of pain and temperature from two segments below (spinothalamic tract decussates in the cord). Anterior cord syndrome spares dorsal columns; central cord preferentially affects upper limbs.

Reference: BD Chaurasia's Human Anatomy, 8th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.