Purpose: Odontogenic cysts and tumors comprise a major component of lesions the oral maxillofacial region. The pathogenesis these involves interaction between odontogenic epithelium ectomesenchyme. However, clinical behavior biological entities is unpredictable. aim this study was to evaluate role Cyclooxygenase 2 (COX-2) in prognostication lesions.Material method: : In formalin-fixed paraffin-...