Orthokeratinised Odontogenic Cyst of the Jaw- Report of Two Cases and Review of Literature

Abstract

Introduction-

Orthokeratinized Odontogenic Cyst (OOC) is a rare developmental cyst with distinct histopathological characteristics. Initially classified as a variant of odontogenic keratocyst (OKC), OOC was later recognized as a separate entity by WHO classification (2017) due to its unique features.

Case Report-

A 17-year-old male presented with painful swelling in the lower jaw, progressively increasing over 2-3 months. Clinical examination revealed bony hard growth in the posterior mandible, confirmed as OOC through imaging and histopathology. Surgical enucleation resulted in uneventful healing and no recurrence over 12 months.

A 29-year-old male reported pain and reduced mouth opening in the lower jaw. Clinical and radiographic evaluations showed unilocular homogenous radiolucensy with root resorption in 36 37 and impacted 38, confirmed as OOC histo-pathologically. Surgical enucleation led to successful recovery with no recurrence over 7 months.

Conclusion-

These cases illustrate rare occurrences of OOCs in the posterior mandible that were clinically diagnosed as OKC/ Dentigerous cyst.