Hmmmmm ...a few questions...What were the scans done for? a suspicious area?, or routine surveillance. ..and the biopsy?? again, was it for a suspicious area? In that case, I would certainly pursue more tests, including a laryngoscopy.
If the biopsy had been done more recently, I would say that it was some bleeding from that. But after three months that shouldn't be the case. It certainly might be a problem area that didn't somehow show on the scans and the biopsy but now has developed enough to be diagnosed.
When you say that you saw the ENT yesterday..Did you go because of the bleeding? She "didn't give you much hope,"...what did she mean?
I am confused, but it sounds like you have things going on that need attention and that you don't have a clear picture...Maybe you wrote quickly and simply didn't realize that we can't read between the lines.