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The pet scan look for tumor activity. Hypermetabolic state means that cancer is likely to be present in these lymph nodes as shown by increased uptake and that is why you would need chemo on an ongoing basis.
My doctor is giving me gemcell which for all I've read is for ovarian cancer. If I am taking chemo why are these new lymph nodes becoming enlarged and can these lymph nodes be removed?
The cancer can spread even when chemo is use based on high aggressive it is and response to chemo. The lymph nodes will not be removed. Chemo will be given to reduce/ shrink the tumors.
You said that it shows that cancer is likely to be present but could it be something else such as valley fever or phnumonia which would affect the lmpth nodes?
No. It is tumor until proven otherwise.