The calcifying odontogenic cyst (COC), first described by Gorlin et al. in 1962, represents a heterogeneous group of lesions that exhibit a variety of clinicopathologic and behavioral features. COC has been categorized under two basic groups namely, cystic and neoplastic. Even after several classifications and sub-classifications, COC remains an enigma. Very few cases of ameloblastomatous COC h...

Background: Jaw cysts and cyst-like lesions cause facial deformity, destruction of dental tissues and affect masticatory and phonation functions. These adversely erode patients’ psycho-social status; create low self-esteem and may change one’s facial identity and appearance. Objective: To determine the histopathologic characteristics, variants and demographic pattern of jaw cysts and cyst-like ...

Objectives: To focus on distribution of different histologic types of odontogenic cysts (OCs), patient gender and age, and cyst location in an Iranian population and compare results with others studies in different geographic locations and/or racial populations. Materials and Methods: A 40-year retrospective study of 1189 patients with OCs that were diagnosed from 1971 to 2011 in the Department...

Calcifying epithelial odontogenic tumor is a rare odontogenic neoplasm. Its occurrence in the maxillary sinus is very rare. Maxillary tumors tend to be locally aggressive and may rapidly involve the surrounding vital structures.  We report a case of calcifying epithelial odontogenic tumor involving maxillary sinus in a 48 years old female patient with the oral mucosal involvement. The purpose o...

A calcifying odontogenic cyst may be associated with tumors, particularly odontomas. However, the association between cysts and is rare. This study aims to report first case of a an antral pseudocyst. male patient presented tumor lesion in his right maxillary alveolar ridge 6 months evolution painful symptoms . An excisional biopsy was performed, histopathological diagnosis pseudocyst issued. T...

Background: Ameloblastin (AMBN) gene expresses an important protein that acts as a cell adhesion molecule. This protein plays an important role in maintaining the ameloblast secretory stage of differentiation by binding to them and inhibiting their proliferation. Due to the relationship of this protein in the differentiation and proliferation of odontogenic cells, here, we investigated this gen...

OBJECTIVES Ghost cell odontogenic carcinoma is a rare condition characterized by ameloblastic-like islands of epithelial cells with aberrant keratinitation in the form of Ghost cell with varying amounts of dysplastic dentina. MATERIAL AND METHODS We report a case of a 70 year-old woman with a rapid onset of painful swelling right maxillary tumor. Magnetic resonance showed a huge tumor depende...