Tumor Fever ... what is it? and does mom have it?

So we are in week 3 of the 4th treatment and the second clinical trial drug. Mom is probably taking 15 pills a day and that doesn't include the vitamins she should be taking (or the 7 that I want her to take anyway) and she definitely needs to hydrate more. Anyway, she's been having fever at night and last night it rose to 102.6. The fever is relatively new. It has been off and on, but it is now more frequent. Mom called the doctor this morning and he said it could be "tumor fever".

I am trying to research what "tumor fever" is and so far I'm not coming to a very conclusive discovery of what it is. I have discovered that it is difficult to diagnose because there are too many potential causes and it is hard to exclude them. Some of the potential causes include all the different meds she is taking and how they react with each other as well as individually their side effects alone could cause fever. Another possibility to include is the dehydration. Anyway, the point is that it may not actually be "tumor fever" and just a fever.

Now that I have said that, I will first explain the negative meaning of "tumor fever" and then I will give the good explanation, but try to keep in mind that it may not be "tumor fever" and know that mom is still getting up every day and continuing to stay strong and fight. She is in control of her life and this cancer is not controlling her. She will not succumb to it and she knows that God is with her and healing her too.

The bad:  'In solid malignancies, tumor fever is commonly associated with rapidly progressive metastatic disease and a limited survival. Liver metastases are present in many of these patients and some of them may display significant systemic inflammation. We report two unique patients with adenocarcinoma of the lung associated with tumor fever, necrotic liver metastases and granulocyte-colony stimulating factor (G-CSF) driven leukocytosis(Conn Med. 2010 Aug;74(7):389-91).' This basically is just saying that when fever is caused by the tumor it means that it may reflect the growth or spread of a tumor and meaning it has spread to the liver.
*I would like to point out that mom's vitals show that her liver enzymes are in range and that is a good thing.

The good: I found one site where a patient noted that their oncologist stated that "tumor fever" is when the tumor cells start "melting" the toxins are released and that can cause fever. I also found another patient who has stated that "tumor fever" is a good thing and it means that the tumor is dying and that the dead tissue ends up in your liver and colon and this is what causes the fever.

Finally, the immune system in cancer patients is compromised and weakened so it could be caused by environmental factors. Right now in San Antonio the weather has been weird and its a cool humidity, wet, and overcast which is a perfect environment for bacteria and molds in the air and plenty of people are feeling sick and being affected by allergies.

If you have any more questions, concerns, or your own input I welcome it always.

Thank you and God bless!

-Vanessa