Original pathology report when first operated on first the cyst it was diagnosed as "may be" ameoblastoma, cystic odontogenic tumor, an unusually large radicular cyst or ancurysmal bone cyst. I questioned this right at the start and cancer doctor that "specializes" in renal cell told me that's what it definitely was. The biopsy was initially done with an extremely small piece of the cyst. I bled out and the surgeon at the time said she was lucky to get the small piece!!! I'm waiting for Sloane Kettering for a 2nd opinion because they are closest to me. I didn't believe in jumping into surgery unless they said it was my only option. So, ameloblastoma would be even more serious???