What is a lump on a teenagers back below the right side of her neck?

It could be anything but most commonly it is a lymph node. This would be right under where your jaw hinges. It may (or may not) feel hard, warm to the touch or painful. If it lasts for more than two...

I knew an old lady(94 yrs old) who has now passed away of old age, that had that exactly but it caused her pain, was always there since a fall that caused an injury that caused calcium to grow called...

Could be anything. Could be a muscle knot, could be a cyst, could be a benign growth of tissue, could be worse. Could be something else. Get to a doctor. You need someone with experience to examine...

It is commonly due to enlarged lymph node. But examination is necessary.

Ok I found out what mine is-it's a bone tumor but it's harmless.The only bad thing it can do is press my nerves and give me a headache.Ofcourse,i'll want to remove it,because when you get older it...