This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Spinal cord, its lesions and ANS, Subject name: Anatomy
A patient has the ability to stand with open eyes but falls with closed eyes. A lesion of which pathway is likely responsible for this symptom? 
Select and explain. 
A. Anterior spinocerebellar tract, B. Anterior spinothalamic tract, C. Lateral spinothalamic tract, D. Posterior column syndrome
D: Posterior column syndrome
Answer: D: Posterior column syndrome 
Explanation: Posterior column syndrome(lesion in dorsal coloumn of spinal cord) results in a sensory deficit known as sensory dystaxia or Romberg sign. Romberg +ve when pt. are able to stand with the eyes open but fall with the eyes closed.