Hi Cindy,
My mother's cancer first showed itself as a lesion on her soft palate also (approx. 4cm x 4cm). I would say she let it grow for about 9 months before having it checked out. Unfortunately, biopsy showed squamous cell carcinoma. Further investigation leads doctors to believe cancer started in the tonsil and worked up to the palate. She also has spread to her cervical lymph nodes.
I say this not to scare you - just to answer your question. We are in our 4th month of the diagnosis and I know how eager you are to get information. But you will learn the waiting game -it goes with the territory. You have taken the first and best step in seeing the ENT. Hopefully, IF it is malignant, it will be caught early enough for complete cure.
Let us know what the doctor says and fire any questions at us you may have.
Cynthia