A Mass of the Tuberosity

mass of the tuberosity
The following Case Challenge is provided in conjunction with the American Academy of Oral and Maxillofacial Pathology.
A 72-year-old male presented with a raised lesion in the area of the maxillary right tuberosity. The patient had become aware of the lesion only recently when his upper complete denture would not seat properly.
After you have finished reviewing the available diagnostic information, make the diagnosis.