Yes, that is what happened to me. I was is awful pain and my GP ordered a CT scan. It showed a 6cm x 4cm mass which was stated on the report to be carcinoma. I was immediately admitted to hospital and a surgeon told me that was a secondary cancer virtually giving me a death sentence. Next day I was taken to theatre to have radical surgery but no cancer was detected, just the abscess and I had blood poisoning.
Emotionally that was very traumatic.
I’ve been told that this was a very rare occurrence.