This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S., Subject name: Medicine
Following sign is seen in which condition: 
Select and explain. 
A. Medial medullary syndrome, B. Lateral medullary syndrome, C. Benedict syndrome, D. Millar Gubler syndrome
A: Medial medullary syndrome
Answer: A: Medial medullary syndrome 
Explanation: Ans. A. Medial medullary syndromeImage shows one sided deviation of tongue, i.e. paralysis of XIIth nervea. This occurs in Medial Medullary syndrome or Dejerine syndromeb. It occurs due to occlusion of anterior spinal arteryc. It is characterized by Ipsilateral XIIth nerve paralysis with contralateral hemiplegia.