Today, my son had surgery. When he was just a few days old I discovered a lump behind his ear. I remember that day, I googled immediately what it could be. Most result said it was a lymph node; nothing to worry about. I was still concerned mostly because lymph nodes are suppose to move. My sons bump was not moving. I mentioned it to the pediatrician and she referred us to neurology.
The neurologist said it was a growth that would need to be removed otherwise it could grow and make a hole in his skull.
We went ahead with the surgery and I'm glad we did :) the surgeon said it had already penetrated into his skull. Had we waited longer it would have made a hole. Luckily since he is still young the bone will heal itself and no metal plate will be necessary.

I'm glad that the surgery is over and we caught it in time.

My only complaint: why did none of the doctors who examined the baby after birth or his pediatrician notice the bump!! If I hadn't found it, we could have really faced a larger problem months down the road.