Conversation: The conversation between human and AI assistant.
[|Human|] I curruntly are being treated for stage 3 breast cancer ..her 2..Im on the last of the herceptin of which I will finish in november..It was time to do a pet scan and it came out positibve..today I had a mamogram that showed something wrong so they did an ultrasound..my lymph nodes are swollen and my breat on the right is swollen..I have a Breast mri scheduled for wednesday and they they will be doing a biopesy..is the cancer back...I cant stand the waiting its driving me insane..what does a positive pet scan mean...does it mean def cancer?
[|AI|]  Welcome to ChatDoctorThanks for the query. Well, positive pet scan is a bad sign, but it still doesn't mean that there is cancer recurrence since a lot of pets scan results are false positive. However since this was stage 3 and there is breast swelling and lymph node enlargement, I am afraid that this may be cancer, and you need to wait biopsy and start treatment right after it. You ll probably need both chemo and radiotherapy.  Wish you good health. Regards.