I would suggest to get a second opinion I had a speculated mass and they told all the possibilities like infection , inflammation etc. After receiving the test to rule out those, turned all negative, I knew my speculated mass was malignant. It was devastating. It's now been one year and I'm doing very well. Have been thru surgery and chemo. Now on target therapy. Doing fairly well. I did seek a second opinion from a completely different institution.
Good luck and I hope yours is a different path.