title: Recurrent calcifying odontogenic cyst involving the maxillary sinus.
abstract: The calcifying odontogenic cyst is an uncommon lesion that occurs in both jaws, however involvement of the maxillary sinus is rare. The accepted mode of treatment is enucleation with curettage since it is generally believed that recurrence following such treatment is extremely rare. Of the reported cases of recurrent calcifying odontogenic cysts, none have involved the maxillary sinus. This report is of a large recurrent calcifying odontogenic cyst involving the maxillary sinus, eroding the orbital floor as well as anterior and medial walls of the maxillary sinus and displacing an impacted upper canine into the nasal cavity, in a 45-year-old male patient, 8 years after the initial enucleation.
authors.affiliation: Department of Oral and Maxillofacial Surgery, King Fahd Central Hospital, Gizan, Saudi Arabia. spencer_daniels@yahoo.co.uk
authors.forename: John Spencer Mbia
authors.initials: JS
authors.lastname: Daniels
mesh_terms: D003481:Cuspid / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008444:Maxillary Sinus Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging / Q000473:pathology*; D018333:Odontogenic Cyst, Calcifying / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014095:Tooth, Impacted / Q000000981:diagnostic imaging