This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
Most common cyst of ectopic salivary gland is ? 
Select and explain. 
A. Whaon cyst, B. Wahin cyst, C. Stafne bone cyst, D. Dermoid cyst
C: Stafne bone cyst
Answer: C: Stafne bone cyst 
Explanation: Ectopic salivary gland is nothing but ectopic lobe of juxtaposed salivary gland.It is commonly seen in relation to submandibular salivary gland.Commonest ectopic salivary tissue is Stafne bone cyst.It is invagination of the juxtaposed submandibular salivary gland into the mandible bone on its lingual aspect.X-ray shows radiolucent area due to the cyst below the angle of the mandible,lower to inferior dental vessels and nerve SRB,5th,406