Hi Doctor, I've had recurring swelling around my right parotid gland for years. Every time I see a doctor, they tell me it's infection. Recently, I noticed that the swelling doesn't go away at all, no matter what anti biotics I am on. In the past 2 months, docs put me on anti biotics for 5 weeks and realized that the swelling isn't subsiding. So an ultra sound was done, and was told that the duct on the right side is enhanced - twice the size of the left one and has a very irregular shape however there's no stone or calculus. Now my MRI says that there are multiple enlarged superior cervical nodes inside the parotid gland... some measure upto 2 cms. What does this all mean and why are they suggesting biopsy?