Exam I Flashcards
most common non-odontogenic cyst of the OC
nasopalatine duct cyst
teeth are ___ in nasopalatine duct cyst
vital
how to differentiate between median palatine cyst and nasopalatine duct cyst
MPC more posterior (palatal shelves)
PA cyst also called ___ cyst
radicular
teeth are ___ in PA cyst
NV
PA cyst arises from what?
rests of malassez
DDx for PA radiolucency (NV tooth)
PA granuloma
PA abscess
radicular cyst
radiolucency @ TE site
residual cyst (or granuloma, abscess)
teeth are ___ in buccal bifurcation cyst
vital
most common developmental odontogenic cyst
dentigerous
dentigerous cysts arise from what?
dental follicle
dentigerous cysts must be (erupted/unerupted?)
impacted
“hyperplastic reduced enamel epithelium”
dentigerous cyst
eruption cyst radiography
NONE
globomaxillary lesion DDx
PA cyst
PA granuloma
lateral periodontal cyst
OKC
(must consider tooth vitality)
lateral periodontal cyst comes from what?
rests of serres
lateral periodontal cysts are on ___ teeth
vital
where are lateral periodontal cysts most seen?
Mn PMs
botryoid odontogenic cyst is what?
polycystic variant of lateral periodontal cyst
gingival cyst arises from what?
rests of serres
teeth are ___ in gingival cysts
vital
___ ___ cysts are located on the alveolar ridge
dental lamina
___ ___ are located in the midline
epstein’s pearls
___ ___ are located on the hard palate
bohn’s nodules
___ ___ are remnants from palatal shelf fusion
epstein’s pearls
___ ___ are remnants of minor salivary gland formation
bohn’s nodules
what is a primordial cyst?
one that develops where a tooth ought to be
often OKC
OKCs most often present as ___ cysts
primordial
syndrome associated with OKC
nevoid basal cell carcinoma syndrome
nevoid basal cell carcinoma syndrome AKA
gorlin syndrome
basal cell nevus syndrome
nevoid basal cell carcinoma syndrome presentation (4)
bifid ribs
multiple OKCs
multiple basal cell carcinomas
medulloblastoma
OKC histology
parakeratin
no rete ridges
palisaded basal layer
orthokeratinizing odontogenic cyst vs OKC
orthokeratin (NOT parakeratin)
low recurrence rate
where is calcifying odontogenic cyst found?
anterior Mn and Mx
calcifying odontogenic cyst AKA
gorlin cyst
glandular odontogenic cyst AKA
sialodontogenic cyst
glandular odontogenic cyst features
anterior
crosses midline
nasolabial cyst AKA
nasoalveolar
nasolabial cyst is a remnant of what?
nasolacrimal duct
traumatic bone cyst features
vital teeth
Mn
radiolucent
scalloped border
heal from biopsy
painful, fast growing, expanding, multilocular radiolucency
aneurysmal bone cyst
aneurysmal bone cyst findings
blood-filled cavities
multinucleated giant cells
static bone cyst presentation
radiolucency below IAC
static bone cyst AKA
stafne defect
static bone cyst arises from what?
SM gland (serous)
epithelial odontogenic tumors
ameloblastoma
adenomatoid odontogenic tumor
calcifying epithelial odontogenic tumor
mesenchymal odontogenic tumors
odontogenic myxoma
odontogenic fibroma
cementoblastoma
mixed odontogenic tumors
odontoma
ameloblastic fibroma
ameloblastic fibro-odontoma
ameloblastomas are ___ aggressive than odontomas
more
(less differentiated)
ameloblastomas cannot contain any ___
sclerosis
where is an ameloblastoma located?
posterior Mn
___ resemble enamel organ
ameloblastomas
___ ameloblastomas contain dense collagen
desmoplastic
where are desmoplastic ameloblastomas found?
anterior
___ ameloblastomas mimic OKCs
unicystic
adenomatoid odontogenic tumor demographics and location
teens
anterior Mx > Mn
adenomatoid odontogenic tumor contain ___ and ___ ___
pseudoducts
germinal centers
calcifying epithelial odontogenic tumor demographics and location
adults
posterior Mn
solid epithelial tumor
calcifying epithelial odontogenic tumor
pink polygonal epithelium
amyloid
concentric ring calcifications
calcifying epithelial odontogenic tumor
odontogenic myxoma = ___ if increased collagen
myxofibroma
___ ___ and ___ ___ resembles dental papilla
odontogenic myxoma
ameloblastic fibroma
odontogenic fibroma seen in the ___ ___ and ___ ___
Mx anterior
Mn posterior
cementoblastoma location
Mn 1M
ameloblastic fibroma presentation
painless posterior Mn swelling
crowns of impacted teeth
no sclerosis
ameloblastic fibro-odontoma presentation
mixed density lesion in posterior Mn
ameloblastic fibroma vs ameloblastic fibro-odontoma
lucent vs mixed density
___ odontomas are found in the anterior Mx, and ___ odontomas are found in the posterior Mn
compound
complex
___ odontomas are disorganized
complex
gorlin cysts are associated with ___
odontomas
___ ___ mimics early odontogenesis
ameloblastic fibroma
___ ___ mimics intermediate odontogenesis
ameloblastic fibro-odontoma
___ mimics end-stage odontogenesis
odontoma