It turns out that Lane's horn is actually what is called a Sebaceous cyst. The doctor said that she was happy that it was not a solid mass and that it is not something that needs to be removed but can be. I read that they can return though. Normal cysts don't hurt but can potentially become irritated and begin to hurt. Here is a little somenting I looked up about it. Sebaceous cyst - the skin is lubricated by sebaceous fluid. This fluid can build up inside a pore or hair follicle and form a hard lump filled with thick, greasy matter. Treatment includes drugs, draining the cyst with a small needle, or surgical removal. Sebaceous cysts are common on the face, back, scalp and scrotum.