Calcifying odontogenic cyst (COC) is a unique odontogenic lesion with combined features of a cyst and neoplasm.  This lesion shows a great diversity in its clinicopathological behavior.  It may become aggressive and rarely malignant.  This case is an aggressive COC of the maxilla in a young male patient which recurred after several radical surgical excisions.  Eventually invading the cranium, t...

the calcifying odontogenic cyst (coc) is a rare odontogenic cyst. only 2% of all odontogenic cysts and tumors are coc. coc associated with odontoma (cocao) reported in 24% of cocs. cocao presents a greater incidence in female, with a ratio of 2 to 1. the highest incidence of cocao occurs during the second decade with a mean age of 16 years, most frequently occurring in the maxilla (61.5%). here...

UNLABELLED Dentigerous cysts are one of the most common odontogenic cysts of the oral cavity. Odontogenic cysts can give rise to a variety of neoplasms. Carcinoma arising in a dentigerous cyst is extremely rare, with a review of literature showing near 30 cases. The present report describes 2 cases of primary intraosseous squamous cell carcinoma originated from a dentigerous cyst. The first one...

Peripheral Calcifying Odontogenic Cyst (PCOC) is the extraosseous form of calcifying odontogenic cyst that limited to peripheral soft tissue without bony involvement. This case report presents a PCOC manifested as progressive growth gingival mass in young male treated with excisional biopsy. Histological examination confirmed diagnosis presence characteristic ghost cells and sporadic calcificat...

Hybrid tumors are very rare tumors composed of two different tumor entities, each of which conforms to an exactly defined tumor category. A 14-year-old boy was referred for an intraosseous painless lesion with a histopathological feature of multiple odontogenic lesions including calcifying odontogenic cyst, complex odontoma and ameloblastic fibro-odontoma. The final diagnosis considered to be a...

Central odontogenic fibroma (COF) represents a rare group of benign odontogenic tumor, while dentigerous cyst (DC), on the other hand, is the odontogenic cyst that encloses the crown of an unerupted tooth. A combination of COF and DC is rare and not reported in literature till date. The aim of this paper is to report a case of COF occurring concurrently with DC. The simultaneous occurrence of C...

INTRODUCTION Glandular odontogenic cyst is a rare developmental odontogenic cyst, which often pose a challenge to diagnose it clinically. PRESENTATION OF A CASE A 32 year old female patient was referred to the oral and maxillofacial surgery department with a chief complaint of a painless swelling in the anterior mandible, extending from mandibular left premolar to right first molar region, wi...

Odontogenic fibromyxoma is a rare and locally-invasive benign neoplasm found exclusively in the jaws. It has the potential for extensive bony destruction and extension into the surrounding structures. In the presented case, radiographic and histological features as well as the treatment and follow-up of odontogenic fibromyxoma accompanying odontogenic cyst of mandible in an 8-year-old boy are d...

Dentigerous cyst is a development odontogenic cyst, which apparently develops by accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. It is one of the most prevalent types of odontogenic cysts associated with an erupted, developing or impacted tooth, particularly the mandibular 3rd molars, the other teeth that are commonly affected are maxillary can...

The orthokeratinized odontogenic cyst (OOC) is a rare developmental jaw cyst. Recognition of OOC as a unique entity has long been due, yet its inexplicable radiographic presentation resembling dentigerous cyst, histological likeness to odontogenic keratocyst (OKC) and inconsistent cytokeratin expression profiles overlapping with both as well as with the epidermis, makes it rather confounding. D...