accessory parotid glands的用法和样例：
- The accuracy of ult rasound which qualify the accessory parotid gland is 84%.
- Objective:To recognize sialolithiasis of an accessory parotid gland by discussing its clinical symptoms and characters of diagnose and treatment.
- Result:Sialolithiasis of an accessory parotid gland is a rare disease with various clinic symptoms that is differed from the typical symptoms of sialolithiasis.
- Keywords sialolithiasis;accessory parotid gland;concretion;