Pet scan results

Posted By
Coconnor16
10/9/2017 7:47pm
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Replies: 3

After 2 successful results and 1 1/2 years of treatment on yervoy my latest scan showed a 9-10 mm subcutaneous mass in my right buttocks. Can a tetanus  injection I had 2.5 weeks prior to the scan be the answer?? 

Please help if possible.

Anonymous - (10/9/2017 - 8:55pm)

PET scans show glucose uptake.  There are MANY things that can cause PET scans to have false positives.  Arthritis and trauma are two benign causes.  I'd say a tetanus shot in that same area is certainly a suspect.   

jennunicorn - (10/9/2017 - 11:02pm)

If there isn't a CT scan done at the same time to compare then I would be highly suspicious of this PET result and wouldn't worry too much. Ask your onc what they think about it. 

Jenn - stage IV - Ipi/Nivo (Yervoy/Opdivo); Completed a year of infusions and surgery to remove last tumor

Toby0987 - (10/9/2017 - 11:35pm)

I was goose hunting-my shotgun got off a little on my shoulder and 3 weeks later the pet picked up a hairline fracture in my top rib-long story short those PETS pick up everything. I've yet to get through a PET totally clear. There's always something here or there-mucus plug in lung, something here or something there-I've had pets for the last 5 years-starting every 3 months then every 6. My doc said he would know when it was melanoma because it screams at him on a PET. I'm still stage 3b and go to mayo in Rochester. Good luck and my high school equivalency degree says it is a big nothing!