This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2018, Subject name: Anatomy
Patient presented with imbalance on walking with eyes closed and has to lift up foot and stomp on ground to walk. The tract involved is:- 
Select and explain. 
A. Spinocerebellar tract, B. Dorsal column tract, C. Lateral spinothalamic tract, D. Vestibulospinal tract
B: Dorsal column tract
Answer: B: Dorsal column tract 
Explanation: Case described is of SENSORY ATAXIA - d/o damage to dorsal column of spinal cord. Dorsal column tract: - N. gracilis & N. cuneatus - Carry pressure, vibration, stereognosis & conscious proprioception tactile discrimination Damage leads to: - - Sensory ataxia - Stomping gait - d/o loss of conscious proprioception - Romberg test positive (Pt loses balance with closed eyes). Spinocerebellar tract: - - Carry unconscious proprioception - Damage leads to cerebellar ataxia - wide based gait. Spinothalamic tract: - - Carries pain, temperature (lateral spinothalamic) - Pressure & touch (ventral spinothalamic) Note: Other causes of sensory ataxia 1. Neurosyphilis (tabes dorsalis) 2. DM - II (affects dorsal column) 3. Vit B12 deficiency