orthokeratinized odontogenic cyst
Keratocystic odontogenic tumors can be seen at any age but are most common between 10 and 40 years of age in males and within the posterior mandible. The databases searched were the PubMed interface of MEDLINE and LILACS.
Orthokeratinized Odontogenic Cyst Critical Appraisal Of A Distinct Entity
Orthokeratinized odontogenic cyst usually occurs most often between third and fourth and decades and with a male gender predilection711 In this case 30-year-old female was reported with OOC.
. OOC was actually first described as a dermoid cyst as far back as 1927 by Schultz 8. Orthokeratinized odontogenic cyst presenting as a residual cyst. Odontomas are hamartomatous lesions composed of mature enamel dentin and pulp and may be compound or complex depending on the extent of morphodifferentiation or on their resemblance to normal teeth.
OOCs were first described in 1927 by Schultz 2 as a variant of odontogenic keratocysts now known as keratocystic odontogenic tumours KCOTs 3. It has been categorized as a subtype of odontogenic keratocyst OKC. 75 rows The orthokeratinized odontogenic cyst OOC 1 was first clearly identified as an orthokeratinzed variant of the odontogenic keratocyst by Wright in 1981 2 owing to its different histopathology and reduced likelihood to recur.
Odontogenic keratocyst is a cyst of dental origin with an aggressive clinical behavior having high recurrence rate. Surgery is the usual treatment and recurrence or association with Gorlin-Goltz syndrome has rarely been described. OOC exhibits distinctive clinical pathologic and behavioral features that varied substantially from KCOT and hence now it is considered as a separate entity.
Botryoid odontogenic cyst dentigerous cyst glandular odontogenic cyst lateral periodontal cyst orthokeratinized odontogenic cyst primordial cyst Odontogenic neoplastic cysts. Histologically OOC is characterized by a 4-8-cell-layer-thick orthokeratinized epithelial lining with prominent granulosum and low cuboidal basal cells. Orthokeratinized odontogenic cyst OOC is a relatively rare odontogenic cyst characterized by the presence of orthokeratinized epithelial lining.
1 Here we reported an OOC that presented as a residual cyst at the right maxillary tuberosity in a 50-year-old female patient. Orthokeratinized odontogenic cyst OOC is a developmental cyst of odontogenic origin and was initially defined as the uncommon orthokeratinized variant of odontogenic keratocyst OKC. The orthokeratinized odontogenic cyst OOC is a rare developmental odontogenic cyst that has been considered as a variant of the keratocystic odontogenic tumour KCOT until Wright 1981 defined it as a different entity.
In 2005 it was classified as a distinct entity. Orthokeratinized Odontogenic Cyst OOC is a developmental odontogenic cyst characterised by a lining of orthokeratinized stratified squamous epithelium 1. Discussion Orthokeratinized Odontogenic Cyst was included as a separate and specific entity for the first time in the 4th Edition of the World Health Organization WHO Classification of Head and Neck Tumors which was published in 2017 7.
Odontogenic developmental cysts. Odontogenic cysts oc are epithelium-lined structures that appear in the tooth-bearing areas of both jaws and are considered uncommon in domestic animals12 oc reported in dogs and cats include dentigerous cysts periapical cysts and odontogenic keratocysts. In this case 30-year-old female was reported with OOC.
In contrast to other studies the lesion was located in the body of mandible starting from lower left canine region involving lower left premolars and lower left first molar. Orthokeratinized odontogenic cyst OOC was first described by Schultz in 1927 and in 1945 Philipsen considered it to be a variant of Odontogenic keratocyst OKC. Surgery is the usual treatment and recurrence or association with Gorlin-Goltz syndrome has rarely been described.
In contrast to other studies the lesion was located in the body of mandible starting from lower left canine region involving lower left premolars and lower left first molar. 1313 in humans the majority of cystic jaw lesions are discovered incidentally on. Orthokeratinized Odontogenic Cyst OOC is a rare developmental odontogenic cyst which was considered in the past to be a variant of keratocystic odontogenic tumor KCOT.
Calcifying odontogenic cyst carcinoma ex-cyst keratocystic odontogenic tumor often referred to as odontogenic keratocyst. Orthokeratinized odontogenic cyst OOC is a rare intraosseous cyst characterized by an orthokeratinized epithelial lining and minimal clinical aggressiveness 1. Orthokeratinized odontogenic cyst OOC is a developmental cyst of jaw and was initially considered by the World Health Organization 1992 as the uncommon orthokeratinized variant of odontogenic.
Orthokeratinized odontogenic cyst OOC is an uncommon odontogenic cyst. In this report we presented. The orthokeratinized odontogenic cyst OOC is a rare developmental odontogenic cyst that has been considered as a variant of the keratocystic odontogenic tumour KCOT until Wright 1981 defined it as a different entity.
Orthokeratinized Odontogenic Cyst OOC is a rare developmental odontogenic cyst which was considered in the past to be a variant of Odontogenic keratocyst OKC later renamed as keratocystic odontogenic tumor KCOT. They were first identified by Wright in 1981 2 and were originally thought to be part of the spectrum of Odontogenic Keratocyst OKC 3. Only those reports of OOCs that occurred.
A benign developmental odontogenic cyst mostly unilocular with a fibrous tissue wall lined predominantly or entirely by orthokeratinized stratified squamous epithelium Essential features Cystic bone lesion in mandible or maxilla with compatible radiological features Cyst has orthokeratinized stratified squamous epithelial lining. While KCOT epithelial lining is thick parakeratinized with the basal cells exhibiting typical palisading of the nuclei. Orthokeratinized odontogenic cyst OOC is a relatively uncommon developmental cyst comprising about 10 of cases that had been previously coded as odontogenic keratocysts OKCs16 In 1981 Wright2 reported 59 cases of what he then termed orthokeratinized variant of OKC which showed little clinical aggressiveness.
The aims of the review were to evaluate the principal clinical and conventional radiographic features of orthokeratinized odontogenic cyst OOC by systematic review SR and to compare the frequency of OOC between four global groups. In 1981 Wright identified it owing to its different histology and relatively low recurrence rate as Orthokeratinized variant of odontogenic keratocyst OKC. The keratocystic odontogenic tumor which was previously referred to as odontogenic keratocyst must be differentiated from other odontogenic cysts because of its aggressive behavior.
Orthokeratinized odontogenic cyst usually occurs most often between third and fourth and decades and with a male gender predilection. OOC should be histopathologically differentiated from OKC which has a higher recurrence rate and lower malignant potential. The treatment of OOC is by enucleation and the prognosis following enucleation is excellent with a recurrence rate of less than 2.
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