Pain in the Right Posterior Mandible

right posterior mandible
The following Case Challenge is provided in conjunction with the American Academy of Oral and Maxillofacial Pathology.

An 82-year-old Caucasian female presented to the Department of Oral Medicine at Valencia University in Valencia, Spain with a complaint of pain in the right posterior mandible. The pain was controlled with several over-the-counter analgesics but exudate drained intermittently from an opening in the skin in this area.

After you have finished reviewing the available diagnostic information, make the diagnosis.