small lump inside cheek

I have something very similar. I have had 2 FNA's done on that particular lump (one ultrasound guided, the other was not) and the docs performing the FNAs couldn't get a good enough sample to test. It could be any number of things, but the most likely are TMJ or Lipoma (benign fatty tumor,) or so I am told. I am not a medical professional though, so get it checked!!