odontogenic keratocyst


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o·don·to·gen·ic ke·ra·to·cyst

a cyst of dental lamina origin with a high recurrence rate and well-defined histologic criteria of a corrugated parakeratin surface, uniformly thin epithelium, and a palisaded basal layer. One manifestation of the basal cell nevus syndrome.

odontogenic keratocyst

a distinctive developmental odontogenic cyst which arises from the dental lamina, containing clear fluid and a cheesy material resembling keratin debris. This usually asymptomatic lesion can occur at any age and is found upon radiographic or dental imaging. Large lesions may present with pain, swelling, or drainage.

keratocystic odontogenic tumour

A benign cystic lesion of the jaw—75% in mandible, 90% behind canines—which arises in the dental lamina, often associated with impacted teeth; average age, 41 years; male:female ratio, 2:1. If multiple tumours are seen, basal cell nevus syndrome (a condition accompanied by basal cell carcinoma, ovarian fibroma, palmar pits, and medulloblastoma) should be excluded.

Management
KCOTs notoriously recur; initial surgery should include a generous margin and a rim of uninvolved bone.

o·don·to·gen·ic ker·a·to·cyst

(ō-don'tō-jen'ik ker'ă-tō-sist)
A cyst originating in the dental lamina that has a high recurrence rate, a corrugated parakeratin surface, uniformly thin epithelium, and a palisaded basal layer; one manifestation of the basal cell nevus syndrome.

o·don·to·gen·ic ker·a·to·cyst

(ō-don'tō-jen'ik ker'ă-tō-sist)
Lesion of dental lamina origin with a high recurrence rate and well-defined histologic criteria of corrugated parakeratin surface, uniformly thin epithelium, and a palisaded basal layer. One manifestation of the basal cell nevus syndrome.

odontogenic keratocyst (OKC),

References in periodicals archive ?
Odontogenic keratocyst, in cysts of the oral and maxillofacial regions.
Key Words: Khyber College of Dentistry, Odontogenic Keratocyst.
Differential diagnosis like ameloblastoma, ameloblastic fibroma, odontogenic fibroma, central hemangioma, or odontogenic keratocyst along with OM could be listed as initial diagnostic hypothesis based on the clinical and radiological findings.
Results: Out of total 100 patients, 58% were diagnosed with radicular cysts, 25% with dentigerous cysts, 15% with odontogenic keratocyst, 1% patient with calcifying epithelial odontogenic cyst and 1% patient was diagnosed with eruption cyst.
1) In 2005, the World Health Organization (WHO) classified odontogenic keratocyst (OKC) as a keratocystic odontogenic tumor (KCOT).
Owing to its specific histopathological features, aggressive behavior and high recurrence rates, the odontogenic keratocyst was reclassified and renamed "keratocystic odontogenic tumor" (KCOT) in the World Health Organization (WHO) classification of head and neck tumors in 2005.
For the multilocular lesions in the mandible ramus, differential diagnoses of SBC were: ameloblastoma, odontogenic keratocyst, odontogenic myxoma, and central giant cell lesion.
INTRODUCTION: Resection of the mandible and immediate reconstruction with autogenous bone graft are widely used in the treatment of odontogenic keratocyst involving a large section of the mandible.
25) The older, more traditional designation for this lesion is odontogenic keratocyst.
DCs are the third most common odontogenic cysts, after radicular cysts and odontogenic keratocyst, and account for approximately 10.