This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous ENT, Subject name: ENT
Tornwaldt cyst is 
Select and explain. 
A. Laryngeal cyst, B. Nasopharyngeal cyst, C. Ear cyst, D. None
B: Nasopharyngeal cyst
Answer: B: Nasopharyngeal cyst 
Explanation: Thornwaldt's disease or Pharyngeal bursitis is an infection of pharyngeal bursa located in the midline of the posterior wall of the nasopharynx. Ref: Textbook of ENT, Dhingra; 6th edition; Pg no: 245 ref img