At that time, I had a negative MRI of my brain, but there was a very tiny lesion in an area on my cerebellum near the old abscess
site. Then in October, I went to the ER and they did an MRI
of my brain
. It showed a 7 mm lesion, where there was nothing 4 months before. It was in the right insular cortex. I believe the area corresponds with the second small tumor 5 years before that disappeared, but they said that if they didn't see it all of that time, it must have been under 1 mm.