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: Pathology
One of them is not a true cyst: 
Select and explain. 
A. Hemorrhagic cyst, B. Median palatal, C. Globulornaxillary, D. Nasolabial
A: Hemorrhagic cyst
Answer: A: Hemorrhagic cyst 
Explanation: None