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
Recurrent facial nerve palsy is a feature of: 
Select and explain. 
A. Melkersson Rosenthal syndrome, B. Simpson Golabi syndrome, C. Down's syndrome, D. Klinefelter's syndrome
A: Melkersson Rosenthal syndrome
Answer: A: Melkersson Rosenthal syndrome 
Explanation: The rare Melkersson-Rosenthal syndrome consists of recurrent facial paralysis; recurrent--and eventually permanent--facial (paicularly labial) edema; and, less constantly, plication of the tongue. Its cause is unknown Ref: Harrison's principle of internal medicine 17th edition, chapter 371.