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This question was answered on Tue 20, May 2008 08:28pm by Dr Paul S, MD

Colon Cancer - Had surgery 5 weeks ago. Starting chemo next week.


    
Asked by yah1weh (Female; 68; In excellent health except for anemia that surfaced a couple of years ago. Took several iron infusions to get iron back to where it should be before doing colonoscopy. Have Sjogren's Syndrome. Diagnosed 1993 and underactive Thyroid for last 20 years, but is under control with Thyroid medication.; Relevant drugs:Armour Thyroid - 65 mg. - once daily No meds for the Sjogren's. Just treat symptoms. ) on Tue 20, May 2008 10:35am

My tumor in my colon was removed 5 weeks ago. A cat scan previous to the surgery did not detect ANY spreading to other organs. My tumor was a stage 3 having invaded some fatty tissue outside the colon and into the bowel wall. 40 lymph nodes were tested and cancer cells were found in only ONE. I am now scheduled to begin 6 months of Chemo starting next week and my question is should a PetScan be done previous to treatment to locate possible cells anywhere else in my body? Is this something that is normally done or recommended to be done BEFORE Chemo to assist in treatment? Thanks for your help.

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Answer by Dr Paul S, MD  on Tue 20, May 2008 08:28pm:

Hi there. Doing a PET-Scan is not routine done before adjuvant chemotherapy for colon cancer. However, this can be done depending on the protocols of specific cancer centers. PET scan can also be done if there are equivocal or suspicious findings that show up on routine CT-Scan or MRI scans. More commonly, a CT scan or MRI is sufficient to detect any metastatic focus of disease before or during the treatment course. Equivocal findings that can warrant the use of PET scan include small liver nodules, effusions or fluid in the lungs, or fluid in the abdominal cavity with no obvious cause. I suggest you inquire with your cancer center if PET scan is routinely done. I hope your adjuvant chemotherapy treatment will proceed as uneventful as possible. Regards and God bless.

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