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
Ranula is a: March 2013 (a, d, e) 
Select and explain. 
A. Retention cyst, B. Extravasation cyst, C. Edema of uvula, D. Edema of floor of mouth
A: Retention cyst
Answer: A: Retention cyst 
Explanation: Ans. A i.e. Retention cystBailey & Love (Surgery) states that ranula is an extravasation cyst, but CSDT (Surgey), Dhingra (ENT) & even internet references describe it as retention cyst.