Keratinizing Dentigerous Cyst - An Unusual Entity-A Rare Case Report

Background: A dentigerous cyst or follicular cyst is one of the forms of odontogenic cysts. It encloses the crown of an un-erupted tooth by the expansion of its follicle within the follicular space. It is normally painlessly discovered during the routine radiographic examination. Importance of keratinization in odontogenic cysts is still a mystery as it is a very rare entity. This article reports a case of keratinizing dentigerous cyst associated with a mandible.Case Presentation: A 50-year-old male patient with a chief complaint of swelling and pain in the right side of the lower jaw for 4 months. The lesion was provisionally diagnosed as OKC or dentigerous cyst after a clinical and radiographic examination. Treatment consisted of surgical excision and the excised specimen was sent for histopathological examination which confirmed the findings of a keratinizing dentigerous cyst.Conclusions: Only a few cases of keratinizing dentigerous cyst has been reported in the literature so far to the best of our knowledge. Early recognition and intervention play a key role in its management due to its malignant transformation and potential for recurrence.