The doctor found an enlarged lymph node on my son's neck during a recent physical for school. He said to watch it for a a couple of weeks to see if it would go away. He was not sick then nor is he now. After 3 weeks it was still there so. Doctor said it could be an infection, asked if he had been scratched by a cat as that could cause an infection, but then said it could be something worse. After 3 weeks it was still there. Doc put him on 600mg augmentum, so far after 1 week, no change. My question is, should I just sit back and wait for another week, or should I be more pro-active and insist on a possible biopsy? I don't know what the chances of this being a lymphoma is, but I was quite un-nerved over the way the doctor said that it could be something worse. He had bloodwork done, and it showed no infection. I know I am a worrywart, but this is my son. Thanks in advance.