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Extraosseous calcifying odontogenic cyst: a case report and a literature review
Cazal, Claudia;Sobral, Ana Paula Veras;Silva, Vania Cavalcanti Ribeiro da;Araújo, Vera Cavalcanti de;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2005, DOI: 10.1590/S1676-24442005000600012
Abstract: the calcifying odontogenic cyst is an uncommon odontogenic lesion that can have intra- or extraosseous occurrence with both cystic or tumor behavior. a report of an extraosseous calcifying odontogenic cyst (ecoc) in a 57-year-old black woman is presented as well as a review of the literature about the lesion. the clinical, radiographic and histopathologic features are discussed, along with etiology and treatment.
Calcifying Ghost Cell Odontogenic Cyst: Report of a Case and Review of Literature
Archana Sonone,V. S. Sabane,Rajeev Desai
Case Reports in Dentistry , 2011, DOI: 10.1155/2011/328743
Abstract: The calcifying ghost cell odontogenic cyst (CGCOC) was first described by Gorlin et al. in 1962. Calcifying ghost cell odontogenic cyst is comparatively rare in occurrence, constituting about 0.37% to 2.1% of all odontogenic tumors. The most notable features of this pathologic entity are histopathological features which include a cystic lining demonstrating characteristic “Ghost” epithelial cells with a propensity to calcify. In addition, the CGCOC may be associated with other recognized odontogenic tumors, most commonly odontomas. There are variants of CGCOC according to clinical, histopathological, and radiological characteristics. Therefore a proper categorization of the cases is needed for better understanding of the pathogenesis of each variant. Here, we report a classical case of calcifying odontogenic cyst along with a brief review of literature.
Ameloblastomatous CCOT: A Case Report of a Rare Variant of CCOT with a Review of the Literature on Its Diverse Histopathologic Presentation  [PDF]
Shailesh Menat,Shylaja MD,Kailash Attur,Kaushal Goyal
Case Reports in Dentistry , 2013, DOI: 10.1155/2013/407656
Abstract: Calcifying odontogenic cyst is considered as a rare lesion and accounts for 1% of jaw cysts. It represents a heterogeneous group of lesions which exhibit a variety of clinicopathologic and behavioral features. It has been categorized as cyst and neoplasm. Even after several classification and subclassification, COC remains an enigma. WHO classification 2005 has reclassified the lesion as calcifying cystic odontogenic tumor (CCOT). Ameloblastomatous COC is a rare variant which is not much described in the literature. This report describes one such case which was large multicystic, involved the coronoid and condylar process of the mandible, and treated by subhemimandibulectomy. The case was recurrence free even after 1?year of followup. 1. Introduction Calcifying odontogenic cyst (COC) was first described by Gorlin et al. (1962, 1964); hence, the eponym of “Gorlin cyst” is frequently used. The lesion has been widely occurring both peripherally and centrally in the jaws [1]. Although it was recognized as a distinct pathologic entity at first, COC shows extreme diversity in its clinical and histopathological features as well as its biological behavior [2]. COC was considered as a developmental odontogenic cyst with diverse origin [3]. It is a rare odontogenic pathology and constitutes to about from 0.37% to 2.1% of all odontogenic tumors [4] and about 1% of the jaw cysts reported [5]. A majority of COC are cystic in architecture and appear to be nonneoplastic, but they sometimes appear as a solid lesion; at least some of the solid lesions are neoplastic in nature [2]. According to the new WHO classification in 2005, COC has now been reclassified as calcifying cystic odontogenic tumor (CCOT) [6]. It often occurs in association with other odontogenic tumors such as ameloblastoma and complex odontoma [7]. The classification advocated by Hong et al. has two categories for CCOT associated with ameloblastoma: the ameloblastomatous cystic and the neoplastic variants associated with ameloblastoma. Herewith, we are reporting a case of ameloblastomatous CCOT which will add one more rare case to the literature which might help in understanding the biologic behavior of this type of lesion. 2. Case Report A 20-year-old male patient visited the department of oral and maxillofacial surgery with a chief complaint of swelling on lower left 1/3 of face and disfigurement of face for 2 years. Swelling which started gradually increased to attain the present size. Extraoral examination revealed a swelling in the lower left back tooth region of the jaw and on the angle of the
Pilomatricoma: A dermal analog of calcifying odontogenic cyst  [cached]
Kaveri H,Punnya A
Indian Journal of Dental Research , 2008,
Abstract: Pilomatricoma, also known as "Calcifying Epithelioma of Malherbe" is an uncommon, benign, cutaneous tumor originating from the hair matrix. Most often, its precise preoperative diagnosis is not possible. Rarity of this lesion and its histological resemblance to the calcifying odontogenic cyst (the Gorlin′s cyst) make it relevant, both to the maxillofacial surgeons and the pathologists. Here, we describe a case of pilomatricoma of the periorbital region in a young Indian female patient. We believe that its inclusion is essential in the differential diagnosis of hard masses of the maxillofacial and paraoral regions.
A pigmented calcifying cystic odontogenic tumor associated with odontoma: A case report
Gh Jahanshahi,Sh Tabatabaei Ardakani
Journal of Isfahan Dental School , 2009,
Abstract: Introdution: Pigmented intraosseous odontogenic lesions are rare, with only 47 reported cases inthe English literature. Among them, pigmented calcifying cystic odontogenic tumor, formerly knownas calcifying odontogenic cyst, is the most common lesion with 20 reported cases.Case Report: The patient was a 19-year-old man. He had a bony, tender expansion in anteriorright maxillary region extended to orbital rim with visual complaints and unilateral headache.Considering radiographic appearance, microscopic study, special and immunohistochemicalstaining, a diagnosis of pigmented calcifiying cystic odontogenic tumor associated with odontomawas rendered.Conclusion: Due to the same neural crest origin for melanocytes and dental lamina, the presenceof melanocytes and melanin in this lesion is accountable. However, till now, no biologic behavioraland prognostic role has been considered for it. This case will add to rare reported cases ofpigmented odontogenic lesions.Key words: Pigmented calcifying cystic odontogenic tumor, Odontoma, Melanocyte
Calcifying Odontogenic Cyst with Complex Odontoma: Histological and Immunohistochemical Features
Nooshin Mohtasham,Amin Rahpeyma,Saeedeh Khajeh Ahmadi,Mohsen Merati
Journal of Dental Materials and Techniques , 2012,
Abstract: 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, we describe a classic case of COCaO of the maxillary incisor-canine region in 17-year-old girl, and discuss the clinicopathological features and immunohistochemical finding of this tumor.
Peripheral calcifying cystic odontogenic tumour of the maxillary gingiva
Ana Lima, Dárcio Kitakawa, Janete Almeida, Adriana Aigotti Brand?o, Ana Anbinder
BMC Research Notes , 2012, DOI: 10.1186/1756-0500-5-455
Abstract: Authors report a rare case of a peripheral calcifying cystic odontogenic tumor of the maxillary gingiva. A 39-year-old male patient presented with a fibrous mass on the attached buccal gingiva of the upper left cuspid teeth. It was 0.7-cm-diameter, painless and it was clinically diagnosed as a peripheral ossifying fibroma. After an excisional biopsy, the diagnosis was peripheric calcifying cystic odontogenic tumor. The patient was monitored for five years following the excision, and no recurrence was detected.All biopsy material must be sent for histological examination. If the histological examination of gingival lesions with innocuous appearance is not performed, the frequency of peripheral calcifying cystic odontogenic tumor and other peripheral odontogenic tumors may be underestimated.A calcifying cystic odontogenic tumor (CCOT) is an extremely rare benign cystic neoplasm that is characterized by an ameloblastoma-like epithelium and ghost cells that have the potential to undergo calcification [1]. Originally, CCOTs were referred to as calcifying odontogenic cysts (COC). The structure was first described by Gorlin in 1962 as a distinct entity and was therefore called Gorlin cyst [2]. COC was considered as a developmental odontogenic cyst in the jaw. In their first report, Gorlin et al. [2] considered this lesion to be a possible analogue of the cutaneous calcifying epithelioma of Malherbe (the pilomatrixoma). COC accounted for approximately 1% of jaw cysts. In 1981, Praetorius et al. [3] studied and reevaluated 16 cases of COC and proposed that the group actually contained two entities, a cyst and a neoplasm. Since then, neoplastic potential has been investigated.In 2005, the World Health Organization (WHO) designated Gorlin’s cyst as a tumor and described it as belonging to a group of related neoplasms, including the benign cystic-type (CCOT), the benign solid-type dentinogenic ghost cell tumor, and the malignant ghost cell odontogenic carcinoma [1]. The dentino
N. Eshghyar,N. Jalayer-Nadery R. Ashery
Acta Medica Iranica , 2006,
Abstract: The term calcifying odontogenic cyst (COC) was first introduced by Gorlin in 1962. COC occurs mainly as an intra-osseous lesion in mandible or maxilla but the peripheral variation of COC has also been reported. The confusion about COC nature as cyst or tumor has not been resolved and a vast diversity has been shown in clinicopathologic aspects of COC. The purpose of this study was the review and analysis of COC variables such as age, gender and location and reclassification of histopathologic features of cases. The study was a retrospective review, cross sectional and case series one. The records of 36 patients were obtained and the clinical characteristics such as age, gender and location of COC were registered. The histopathologic features of cases were reviewed and reclassified. The data showed that 38.3% of cases occurred in the fifth decade and beyond; 67.6% were in males and 32.4% in females. Considering location, 51.5% of COCs were found in mandible and 48.5% in maxilla; 65.6% were located in posterior part of jaws. Of the 36 cases diagnosed as COC, 32 (88.8%) had cystic features and 4 (11.11%) were tumoral. For better determination of histopathologic and biologic features of COC, more investigations are needed.
The Calcifying Epithelial Odontogenic Tumor (Pindborg Tumor): A Case Report
Mehmet Cemal Akay, Ayhan Tetik, Mert Zeytinoglu
Open Access Library Journal (OALib Journal) , 2014, DOI: 10.4236/oalib.1101036
Abstract: Calcifying Epithelial Odontogenic Tumor (CEOT) is a rare benign odontogenic tumor that was first described by Pindborg in 1955. It accounts for less than 1% of all odontogenic neoplasms. This lesion is a locally aggressive benign odontogenic neoplasm arising from epithelial tissue. The radiographic appearance is characterized by uni- or multilocular radiolucent areas with radiopaque masses of varying sizes; there is a frequent association with an unerupted tooth. Most CEOT are intraosseous lesions which are most common in the mandible, with most of these occurring in the molar and premolar regions of the mandible. Malignant transformation and metastasis is rare. ?The aim of the current report was to describe the clinical radiological and histopathological findings in a case of mandibular CEOT.
Calcifying epithelial odontogenic tumor: Report of two cases  [cached]
Mandal Shramana,Varma Kachnar,Khurana Nita,Mandal A
Indian Journal of Pathology and Microbiology , 2008,
Abstract: Calcifying epithelial odontogenic tumor (CEOT) is a rare, benign odontogenic tumor. It constitutes 0.4-3% of all odontogenic tumors. There is only a single case, which has been reported in the Indian literature that too in cytology. Microscopically, these are composed of large sheets of epithelial cells, amorphous amyloid-like material and calcification. Although these lesions are benign, they can be locally aggressive, but malignant transformation and metastasis is rare. Considering its locally aggressive nature, appropriate management and long-term follow-up is recommended. We describe two cases of CEOT involving the hard palate and leading to facial alterations.
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