So I had my follow up mammogram and also an ultrasound. The radiologist thinks it is just a cyst and nothing to worry about. I am supposed to have another mammogram and ultrasound in six months to see if there have been any changes. If there are changes, I might need a biopsy.
I am relieved not to have to worry about a biopsy right now. If I need one in six months, well, I'll worry about it then.