Welcome, you've come to the right place for answers and support. Many here are more knowledgable than I but, it sounds like the tumor has not yet been biopsied? A tumor is not automatically cancer, only a biopsy can tell if it is, Best to you, hoping for good results.

David R. 65 yr old male non-smoker, light drinker, stage 3 or 4, depending on which doc you ask, scc rt. tonsil, 2 nodes, 7 weeks radiation and chemo. No surgery. Teatment ended 3/20/08. PET scan 8/08 showed no cancer.
And now, as of oct, 2010, caregiver to wife, Linda, with breast cancer.
May, 2013, Linda diagnosed with stage 3 ovarian cancer. Enuf already.