### Patient: Doctor, I have a mass on my neck that seems to be getting bigger. Also, the skin over it looks abnormal and swollen with some moles. What might be going on?
### Doctor: Based on your symptoms, it sounds like you have a sebaceous cyst. It is a common benign growth filled with sebum, a cheesy, oily substance that occurs from the oil glands in the skin. We can remove it with a minor surgical procedure.