Cysts and Odontogenic Tumors Flashcards
Epithelial lined pathologic cavity
Cyst
You must have ______ in order to categorize it as a cyst
Epithelial lining
• Most common non- odontogenic cyst of oral cavity • A developmental cyst that arises from epithelial remnants of nasopalatine duct • Vital teeth • Adults - 4th to 6th Decades
Nasopalatine duct cyst
Incisive canal cyst
___ only occurs in the maxilla in the midline between #8 and #9
Incisive canal cyst
- Radiolucency - 0.6 cm is the upper limit of normal for the incisive foramen
- Swelling of anterior palate
- Drainage and pain, if inflamed
Nasopalatine duct cyst
- Well-circumscribed palatal lucency
- Epithelium entrapped during fusion of palatal shelves
- Stratified squamous or pseudostratified columnar
- May be difficult to distinguish from Nasopalatine Duct Cyst
Median palatine cyst
• Apex of non-vital tooth
• Arises from rests of Malassez
-INflammatory
Periapical Cyst (Radicular Cyst)
_____ is a periapical cyst that has been left behind
Residual cyst
• Paradental cyst
• Buccal bifurcation of vital mandibular molar teeth with
cervical enamel projection
-Well defined RL
Buccal bifurcation cyst
• Most common type of developmental odontogenic cyst
• Arises from dental follicle - attached to the cervix, enclosing
the crown of an unerupted tooth
• Enlarged follicular space > 4 mm
Dentigerous cyst
You must have a _____ in order for it to be a dentigerous cyst
IMpacted tooth
What are the 3 cells seen in histology of PA cyst?
Plasma cells
Macrophages
Lymphocytes
____ is a soft tissue variant of dentigerous cyst of an erupting tooth
Eruption cyst/hematoma
The _______position is located at the junction of
maxilla with premaxilla, between maxillary lateral incisor
and canine
globulomaxillary
• A developmental cyst that arises from dental lamina rests (rests of Serres) • Vital teeth of adult males (3:1) • Mandibular premolar area • Maxillary incisor-canine area * Vital tooth
Lateral periodontal cyst
Are PA cyst, granuloma, and abscess in vital or non vital teeth?
Non vital
Is the lateral periodontal cyst associated with vital or non vital teeth?
Vital teeth
• Polycystic variant of the lateral periodontal cyst
• A developmental odontogenic cyst that presents as a
multilocular lucency associated with the vital mandibular
premolars of adults
- Multilocular version of lateral perio cyst
Botryoid Odontogenic Cyst
• Soft tissue counterpart of the lateral periodontal cyst
• A developmental cyst that arises from dental lamina rests
(rests of Serres)
• Vital teeth of adult males (3:1)
• Mandibular premolar area and maxillary incisor-canine area
Gingival cyst
Do eruption cysts and gingival cysts have a radiographic presentation?
Nope
What areas do the gingival cysts and lateral perio cysts most likely to occur? Male or female?
Mand PM and Max incisors/canine; Male
_____ are keratin filled bumps that appear yellow on alveolar mucosa
- will rupture on their own
Dental lamina cyst of newborn
• Radiographic term for a cyst that develops in place of a tooth
-In place of where you would expect to see a tooth
• Likely to be an Odontogenic Keratocyst (OKC)
Primordial Cyst
The primordial cyst is likely an _____
OKC
Where are dental lamina cysts found in mouth?
Alveolar mucosa
Where are Epstein’s pearls located in the mouth?
Midline of palate
Where are Bohn’s nodules located in the mouth?
Around minor salivary glands
