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Recent PET

Forums General Melanoma Community Recent PET

  • Post
    scrapps
    Participant

      So i do not  frequently post, but I do come here to  listen and learn rom all the other brave people figting this beast. In Aug of 2012  I had a WLE and SLN biopsy perfomred after discovering a 1.7mm ulcerated, nodular melanoma. One microscopic met in the SN. Had the CLND last October and decided on the peg interferon because I didn;t think I could do  the wotch and wait. I made it through 3 self injections and couldn't rationalize the side effects for the minimal channnce it helps. Since then, we have been doing the "wait and watch" I have had 2 PET/CT scans, the first of  which wass clean and had the second yesterday. Asmall hot  spot was found in the muscle int he back of  my left  shoulder. My original mel and CLND was on the right. Doc said it was not a usual pattern for  Mel, but we all know it  doesn;t follow  many patterns. The other confussing thing to all of us was that the area that lit up was not seen on the CT portion of the scan.Doc suggested an US and biopsy which I am trying to schedule. On my car ride back  after the scans I started processing the info and remembered I had a tetanus booster last wed. in the back of  my left arm. Has anyone heard of immunization  sites showing increased uptake in a PET giving a false positive? The articles I found showed some false positives assocciated with the flu shot so I am holding out hope  that is what it is.

       

      Thanks for the help

       

      Wil

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    • Replies
        POW
        Participant

          Yes, it absolutely could be from your immunization. PET scans just show places where there is a lot of metabolic activity. Any immunization (or infection, for that matter) is supposed to stimulate an immune response. The regional lymph nodes are likely to become very metabolically active for a while and show up positive on a PET scan. Then they should quiet down again in a couple of weeks.

          POW
          Participant

            Yes, it absolutely could be from your immunization. PET scans just show places where there is a lot of metabolic activity. Any immunization (or infection, for that matter) is supposed to stimulate an immune response. The regional lymph nodes are likely to become very metabolically active for a while and show up positive on a PET scan. Then they should quiet down again in a couple of weeks.

              scrapps
              Participant

                Thanks for the reply. That s what most info I could find said, but the hot spot wasn't in the regional nodes. It was in the muscle belly itself. I still think it could cause an inflamatory process there, just still the unknown is bothersome. Keeping a positive attitude though.

                scrapps
                Participant

                  Thanks for the reply. That s what most info I could find said, but the hot spot wasn't in the regional nodes. It was in the muscle belly itself. I still think it could cause an inflamatory process there, just still the unknown is bothersome. Keeping a positive attitude though.

                  scrapps
                  Participant

                    Thanks for the reply. That s what most info I could find said, but the hot spot wasn't in the regional nodes. It was in the muscle belly itself. I still think it could cause an inflamatory process there, just still the unknown is bothersome. Keeping a positive attitude though.

                  POW
                  Participant

                    Yes, it absolutely could be from your immunization. PET scans just show places where there is a lot of metabolic activity. Any immunization (or infection, for that matter) is supposed to stimulate an immune response. The regional lymph nodes are likely to become very metabolically active for a while and show up positive on a PET scan. Then they should quiet down again in a couple of weeks.

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