Tumor like cyst

Site

• Commonly maxilla
• Mandible – premolar region

Radiology

• 1/4 of these cysts are peripheral, radiographically evident calcification, above underlying cortex and manifest as gingival swellings
• Well defined unilocular/multilocular radiolucency
• 50% have opaque foci in “salt and pepper” pattern
• 33% associated with unerupted teeth
• Root resorption and divergence

Histology

• Cystic lesion + fibrous capsule + epithelial lining 4-10 cells
• Basal cells cuboid/columnar
• Overlying epithelium resembles stellate reticulum
• Ghost cells – Eosinophilic, anucleate epithelial cells that have undergone dystrophic calcification

Management

• Simple surgical excision
• Good prognosis

Picture