Signs and Symptoms - Most calcifying odontogenic cysts appear asymptomatic - Painless, slow-growing mass on the mandible and/or the maxilla - Swelling in the mouth, both inside the bone and in the gingiva - Nasal stiffness, epistaxis, and headache when located in the maxilla - Impacted or displaced teeth and intrabony expansions

Causes and Mechanism/Pathophysiology - Arises from odontogenic epithelial remnants trapped within the bones or gingival tissues - Associated with impacted and unerupted teeth - Presence of ghost cells within the epithelial lining - Controversial mechanism: coagulative necrosis, enamel protein build-up, or abnormal keratinization - Formation of large sheets of calcifying material and eosinophilic dentinoid - Different forms of cystic and neoplastic calcifying odontogenic cysts

Diagnosis - Radiographic features: unilocular or multilocular radiolucencies with radiopaque deposits - CT scan reveals internal structures and involvement of neighboring structures - Histology shows stratified squamous epithelium, stellate reticulum-like cells, and ameloblast-like cells - Different types of calcifying odontogenic cysts based on special features - Dental radiographs and CT scans are used for diagnosis

Treatment and Prognosis - Standard treatment is enucleation and curettage - Removal of 1 to 2 millimeters layer of bone around the cystic cavity - Follow-up visits may be required to monitor recurrence - Rare recurrence after enucleation and curettage - Favorable prognosis with minimal chance of recurrence

Prevalence and Characteristics - Only 0.3% of 6,250 oral and maxillofacial lesions diagnosed were calcifying odontogenic cysts - Most cases found in the mandible - Age range of affected individuals: 9 to 58 years - 90% of cases reported no painful symptoms - 10% of cases reported painful symptoms - Higher prevalence of calcifying odontogenic cysts in the posterior mandible (55% of cases) - Other bone diseases commonly found in the posterior mandible, emphasizing the importance of location for diagnosis - Previous studies found a higher prevalence of calcifying odontogenic cysts in the maxilla and anterior region - Radiographic and clinical examination crucial for accurate diagnosis - Histopathological evaluation necessary for confirmation of the diagnosis