Odontogenic keratocyst involving maxillary antrum-a case report

Odontogenic keratocyst is a cystic lesion of odontogenic origin derived from the remnants of dental lamina having biologic behaviour similar to benign neoplasm, with distinctive lining of 610 palisaded basal layer corrugated parakeratin surface. The odontogenic keratocyst deserves special attention for its tendency to recur and potential aggressive behaviour. Due to unspecific clinical and radiographic features, it may be confused as ordinary cysts resulting in unnecessary recurrences. Posterior mandible being the commonest site, its occurrence in maxilla is unusual and its appearance in maxillary sinus is very uncommon. This is a case report of a 28 years old male patient who was diagnosed with odontogenic keratocyst associated with impacted 3^rd molar placed high in maxillary sinus at the level of infraorbital margin.