Stafne Bone Defect Left Mandible

Patient: This is a 51 year old male patient with an unremarkable medical history. He presented for his six-month cleaning, exam, and FMX with no chief complaint. I saw this patient at my old practice in West Hartford prior to establishing my current practice in Orange, CT.

Description: This patient had been with our practice for approximately 8 years at the time of diagnosis.  He had no history of a panoramic x-ray with us.  A single full mouth series of dental radiographs were taken approximately 6 years prior.  A full mouth series of x-rays were then taken on the visit. On reviewing his latest films, the most anterior border of a radiolucency just distal to a mesially inclined #17 was visible.  The periapical radiograph is below:

Periapical dental x-ray showing most anterior portion of Stafne Bone Defect, also called Stafne Bone Cyst

I consulted the previous FMX from approximately 2006.  The apices of #17 were not visible so I was unable to ascertain if this lesion was present previously or was a new finding.  I consulted with the patient and asked if we could proceed with a panoramic x-ray. The patient consented.

Panoramic X-ray showing Stafne Bone Cyst lower left, also called Stafne Bone Defect
The radiographic appearance was highly suggestive of a Stafne Bone Defect or Stafne Bone Cyst.  Palpation of the floor of the mouth did not reveal any mass, again suggestive of the Stafne Bone Cyst.  Despite this, the patient was referred to an Oral and Maxillofacial surgeon for evaluation by Cone Beam Computed Tomography.

The Advanced Maxillofacial Imaging Team at the University of Connecticut performed a cone beam computed tomography scan.  A six-inch field of view was obtained allowing for visualization of the lower left area in all 3 planes.  The impression of the Imaging Team was:

Submandibular salivary gland inclusion defect (Stafne bone defect) located at the left body of the mandible distal to tooth #17.

Because of the radiograph diagnosis, a biopsy was not indicated.  The Oral and Maxillofacial Surgeon requested that panoramic x-rays be taken every 3 years to monitor.

A copy of the radiology report with all patient information blanked out is located as a pdf: Stafne_Bone_Cyst_Radiology_Report