Dear neatfreakmom: Whether or not additional treatment (including lymph node biopsy) is recommended would be based on the specifics of your situation. Your friend's doctor may have made a comment to her based on bits of information provided by your friend. This should not constitute a second opinion. If you are concerned, you should gather up your information, including the pathology slides and reports, and get an official second opinion from an oncologist who can review all of the information and make a recommendation based on the facts.