Evaluate left odontogenic tumor seen on recent CT scan. There is a smoothly contoured, but heterogeneous lesion without discernible enhancement that arises from the left maxillary alveolus and projects into the maxillary antrum. The lesions measures up to approximately 40 mm and extends superiorly to abut the floor of the left orbit. There is a small right sphenoid sinuses retention cyst. The other paranasal sinuses and nasal cavity are unremarkable. The nasal septum is essentially midline. The nasopharynx, facial soft tissues, orbits, and imaged intracranial structures appear to be unremarkable.
A lesion measuring up to approximately 40 mm that that arises from the left maxillary alveolus and projects into the maxillary antrum likely represents a form of odontogenic cyst, perhaps with superimposed prior hemorrhage or infection. 