This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following can lead to trophic ulcers in the fingers except - 
Select and explain. 
A. Cervical disc prolapse, B. Subacute combined degeneration of spinal cord, C. Leprosy, D. Syringomyelia
B: Subacute combined degeneration of spinal cord
Answer: B: Subacute combined degeneration of spinal cord 
Explanation: None