Items tagged “mandible”
45 results found
Adenomatoid odontogenic tumour
Adenomatoid odontogenic tumours are rare and differ from most other dentition related lesions in that they more frequently occur in the maxilla. Epidemiology They are also seen more frequently in females, most frequently in the second decade of life. Radiographic features They present as an ...
Ameloblastic fibromas appear as unilocular lucent mandibular lesions, most frequently in the posterior mandible, and are usually associated with impacted teeth, centred on the unerupted crown. They, therefore, appear very similar to unilocular ameloblastomas. They are composed of enamel and embr...
Ameloblastomas are locally aggressive benign tumours that arise from the mandible, or, less commonly, from the maxilla. Usually present as a slowly but continuously growing hard painless lesion near the angle of the mandible in the 3rd to 5th decades of life, which can be severely disfiguring if...
Calcifying epithelial odontogenic tumour
Calcifying epithelial odontogenic tumour, also known as a Pindborg tumour, is typically located in the premolar and molar region of the mandible, although up to a third are found in the maxilla. Epidemiology Usually they are seen in the 4th to 6th decades. They are rare tumours. Pathology As...
Cementoblastoma is one of many mandibular lesions is a rare tumour of the cementum, with only approximately 100 cases reported. Key to diagnosis both radiologically and histologically is attachment to the tooth root. Terminology Cementoblastomas have been previously described in the literatur...
Central giant cell lesions (granuloma)
Central giant cell lesions (granulomas), also known as giant cell reparative cysts/granulomas, occurs almost exclusively in the mandible, although cases in the skull and maxilla have been reported. Epidemiology It is most frequently seen in young women (F:M 2:1) 5 and typically presents in the...
Dentigerous cysts, also called follicular cysts, are slow growing benign and non-inflammatory odontogenic cysts that are thought to be developmental in origin. On imaging, they usually present as a well-defined and unilocular radiolucency surrounding the crown of an unerupted or impacted tooth ...
Mandibular lesions are myriad and common. The presence of teeth results in lesions that are specific to the mandible (and maxilla) and a useful classification that defines them as odontogenic or non-odontogenic. While it may often not be possible to make a diagnosis on imaging alone, this classi...
Keratocystic odontic tumour
Keratocystic odontogenic tumours (KCOT or KOT), previously known as odontogenic keratocysts, are benign cystic neoplasms involving the mandible or maxilla and are believed to arise from dental lamina. They are locally aggressive and tend to recur after excision. On imaging, they typically appe...
Odontogenic myxomas are rare tumours that involve the mandible or maxilla and account for 3-6% of odontogenic tumours 2. Epidemiology Typically seen in the 2nd to 3rd decades of life (slightly earlier than ameloblastomas). They are usually not painful. Pathology Arises from mesenchymal odont...
Odontomas are one of the most common of mandibular lesions encountered and the most common odontogenic tumours of the mandible. They account for up to two-thirds of all such tumours; the next most common are ameloblastomas, making up the majority of the remaining one-third. Epidemiology They c...
Periapical cysts, also known as radicular cysts, are the most frequent cystic lesion related to teeth (see mandibular lesions) and result from infection of the tooth. On imaging, they generally appear as a round- or pear-shaped, unilocular, lucent lesion in the periapical region, measuring <1 c...
Primordial cyst of the mandible
Primordial cysts are infrequent cystic mandibular lesions, which are thought to result from degeneration of dental follicles. No tooth is therefore present, and the cyst is a well defined, small and static lesion, most commonly located posteriorly in the region of the third molar or angle of the...
Residual cyst of the mandible
A residual cyst is a basket term referring to any residual cystic space post surgery. It is most frequently seen as a remnant of a periapical cyst.
Solitary bone cyst of the mandible
Solitary bone cysts of the mandible (also known as traumatic bone cyst of the jaw, haemorrhagic cyst of the mandible, extravasation cyst, progressive bone cavity or unicameral bone cyst) are an uncommon nonepithelial lined lucent mandibular lesion. It is one of a myriad of potential mandibular l...
Stafne cysts, also known as a static bone cavity of the mandible or lingual salivary gland inclusion defect, are cortical defects near the angle of the mandible below the mandibular canal. Strictly speaking, it is not a cyst since it does not contain any fluid. It is usually an incidental findin...
2005 WHO histological classification of odontogenic tumours
The 2005 WHO histological classification of odontogenic tumours lays out a classification system for neoplasms and other tumours related to the odontogenic apparatus. At the time of writing (2016), it is still the most widely used classification system. Classification Malignant tumours odont...
Published 07 May 2008
Published 19 May 2008
Glandular odontogenic cyst
Published 01 Jan 2009