V.T.
Get it checked. My niece had a lump on her shoulder and had mulitple diagnosis with no final diagnosis yet. First it was a Lymph node and told not to worry, then it got bigger and it was then diagnosed as a tumor, then it extended through to her spinal cord. Then there was going to be surgery. Then it simply went away. I'm not happy that my sister stopped looking for an answer just because it went away. Even if it is lymph node, please get it checked.