A 16 year old girl came in with a recurrent swelling of the right maxilla. She had surgery several years ago. She arrived with a CT which is unusual. We took a picture of the CT and emailed it to my friend and radiologist John Melvin in the USA. His report: "expansile lesion of the maxilla which may be originating in the area of a tooth root. The bone appears expanded and remodeled (rather than destroyed) suggesting a relatively slowly growing mass. The first thing that comes to my mind is a dentigerous cyst or periapical cyst with ameloblastoma being my next choice. Dr. Melvin was correct. We explored her maxilla and found an ectopic tooth with a dentigerous cyst. There was a molar tooth in the lateral aspect of the maxillary wall. We removed the tooth and she recovered without problems.
|CT of maxilla (note image is reversed|
|Molar tooth in superior, lateral aspect of sinus|