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: Surgery
A child presents with an expansile swelling on medial side of the nose. Likely diagnosis is: 
Select and explain. 
A. Teratoma, B. Meningcoele, C. Dermoid cyst, D. Lipoma
B: Meningcoele
Answer: B: Meningcoele 
Explanation: Meningocoele presents as a cystic swelling which is expansile, transluscent, compressible and shows a positive fluctuation test. One of the common site is root of nose. Ref: Surgical Sho Cases By S. Das, 2nd Edition, Pages 88-89.