Cysts of the Jaw and Oral Regions Flashcards
Cysts can be classified on the basis of 3 things what are they?
Location
Pathogenesis
Cell Type
What is the difference between a radicular and residual cyst?
Residual cysts are found in edentulous teeth
When is a dentigerous cyst suspected with regards to follicular space?
Cyst suspected if follicular space exceeds 3mm
What cyst is this?
Radicular cyst
What type of cyst is this?
Thyroglossal cyst
The image shows a dentigerous cyst what is the arrow pointing at?
Goblet/Mucous filled cell
What type of cyst is this?
Nasopalatine cyst
Define a Cyst
What does a Cyst NOT contain?
A cyst is a pathological cavity containing fluid, semi-fluid or gas
Not filled with pus
Where are mucous extravasation cysts commonly found?
Lower lip from trauma
What are the two different Epithelial cysts?
Odontogenic
Non-odontogenic
Label 1, 2 and 3
What type of cyst is this?
- Fibrous Tissue
- Non-Keratonised Stratified Sqaumius Epithelium
- Cyst cavity with debris
Radicular Cyst
What is this cyst?
Radicular cyst
Cysts can be classified on the basis of pathogenesis what are these 2 classifications?
Developmental
Inflammatory
What is happening in this image?
The cyst has expanded and closed off the left side of nasal cavity
What are the two different types of Odontogenic cysts?
Inflammatory odontogenic cysts
Developmental odontogenic cysts
What can you see in this image?
Nasopalatine cyst
Describe a property of a true pathological cyst?
Lined with epithelium
What type of cyst is this?
Dermoid cyst
Name 3 soft tissue cysts
- Mucous extravasation cyst
- Retention cyst
- Lymphoepithelial (brachial) cyst
Label 1, 2 and 3
What type of cyst is this?
- Cyst cavity
- Non-Keratonised Stratified Sqaumius Epithelium
- Fibrous Tissue
Radicular Cyst
What are the general clinical features of a cyst?
- Swelling
- Displacement or loosening of teeth
- Pain (if infected)
- Eggshell cracking
- Sign of fluctuance
What type of cyst is this?
Odontogenic keratocyst
What type of cyst is this?
Nasopalatine cyst
Describe the difference in the teeth associated with a radicular cyst and a lateral periodontal cyst
Radicular cyst occurs from a non vital necrotic tooth whereas a lateral periodontal cyst is developmental so the associated teeth are vital
What is this image an example of?
Odontogenic keratocyst
What type of cyst is this?
Odontogenic keratocyst
Label 1, 2, 3 and 4
What type of cyst is this?
- Fibromyxoid tissue
- Non-Keratonised Stratified Squamous Epithelium
- Cyst cavity
- Cilliated cells
Dentigerous/Eruption cyst
Epithelium is flat (developmental)
Label 1, 2 and 3
What type of cyst is this?
- Cyst cavity
- Non-Keratonised Stratified Sqaumius Epithelium
- Fibrous Tissue
Radicular Cyst
What cysts are associated with Gorlin Goltz syndrome?
Odontogenic keratocyst
Comment on the link between inflammation and an epethelium in regards to cyst formation
Epethelium proliferation is a reaction to inflammation
What cyst is this?
Residual cyst
Label 1, 2 and 3
What type of cyst is this?
- Cyst cavitity
- Keratinised Epithelieum
- Keratin
Odontogenic Keratocyst
Can tell from uniform epithelieum and keratin
Where are nasopalatine cysts commonly found?
Associated with a vital maxillary incisor
Where are lymphoepethelial cysts commonly found?
Unilateral swelling at lateral part of the neck
What cyst is on this radiograph?
Solitary bone cyst
(irregular shape, arches up and down between the roots)
What are the two different cell type cysts?
Epithelial cysts
Non-epithelial cysts
What cyst is this?
Lateral periodontal cyst
What is this cyst?
How do you know?
Nasopalatine cyst
There is a nerve cell present
Label 1, 2 and 3
What type of cyst is this?
- Fibromyxoid tissue
- Non-Keratonised Stratified Squamous Epithelium
- Cyst cavity
Dentigerous/Eruption cyst
Epithelium is flat (developmental)
