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A member asked:
I discovered a painless lump on the back of my head. i am bald and you can see the swelling. what could it be?
A doctor has provided 1 answer
Pilar Cysts: Pilar cysts are common, occurring in 5-10% of the population. Greater than 90% occur on the scalp, where pilar cysts are the most common cutaneous cyst. Pilar cysts are the second most frequent type of cyst on the head and neck. Pilar cysts are almost always benign, malignant transformation being extremely rare.
Answered 9/14/2019
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