Case Summary and Diagnostic Information

This is a 15-year-old white female who presented with a history of increasing swelling without pain in the left mandible.  Her mother noted the swelling and took her to the family dentist for a clinical evaluation where a periapical radiograph was taken.  The dentist then referred this patient to Dr. Grace who took a panoramic radiograph (Fig 1).

	History of Present Illness
	Medical History
	Clinical and Radiographic Findings
	Excisional Biopsy

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