Odontomes and odontogenic tumours Flashcards
What is a hamartoma?
Mass of disorganised tissue native to the anatomical location, histologically mature cells but arranged in a disorganised manner
What is an example of a locally invasive disease?
Basal cell carcinoma
- caused by UV exposure
- spots on skin grow over months and years
- if not removed will lead to localised detstruction
What are odontomes?
Abnormal growth of tooth forming tissue
What are examples of odontomes?
- Invaginated odontome
- Evaginated odontome
- enamel pearl
- complex odontome
- compound odontome
What is a compound odontome?
A bag of teeth, often have a radiolucent outline around them
What is a complex odontome?
Mass of disordered dental tissue
What is an ameloblastoma?
A painless tumour that is slow growing and locally aggressive
Metastasis is very rare but needs aggressive treatment due to recurrence risk
Origin is dental lamina
Presents as a multilocular radiolucency and CAN expand bone and damage teeth
What is the classification of ameloblastomas?
Follicular - well organised
Plexiform - less well organised
Unicystic - presents very much like a cyst
What is the management of an ameloblastoma?
Confirm diagnosis - biopsy
Assess extent - radiology/CT
Removal with local resection with or without reconstruction
Why are keratocysts more difficult to remove?
They are multilocular and can leave bits of lining behind. Carnov’s solution fixes tissue and kills the cells making it easier to remove.
What are some other odontogenic tumours?
- cementoma
- cemental dysplasia
- cemento-osseous dysplasia
