<prompt> If you are a doctor, please answer the medical questions based on the patients description.My 3 year old daughter woke up with a lump on the side of her neck . it is hard and close to the size of a apple. The other side is slighty enlarged to the size of ping pong ball. She is otherwise well. The Dr checked her and ordered bloodwork and a chest xray. She has had no illiness since January6 months ago How concerned should I be  <response>: Hi, dairy have gone through your question. I can understand your concern. She may have enlarged lymph node. It can be due to reactive hyperplasia, tuberculosis or lymphoma. She should go for blood test, x-ray chest and fine needle aspiration cytology of lump. It will give you exact diagnosis. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. 