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oral path 2 > cysts of the jaw > Flashcards

cysts of the jaw Flashcards

1
Q

t/f cysts are slowly growing and asymptomatic

A

yes. persistent and progressive

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2
Q

radiographic appearance of cysts

A

cortigated border, well defined

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3
Q

to dx cysts, must find

A

clinical, radiographic, and microscopic features

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4
Q

3 inflammatory cysts

A

buccal bifurcation cyst, radicular and residual cyst

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5
Q

where does the epitheilum come from if a cyst is in the bone

A

reduced enamel epithelium, enamel organ, dental lamina, HERS, rests of malassez

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6
Q

only way to really tell what something is is through

A

microscopic evidence

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7
Q

most of the cysts are lined by what type of epithelium

A

nonkeratinized stratified squamous epithelium

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8
Q

radicular cyst

A

necrotic deris and bacteria of nonvital pulp

inflammation stimulates with and forms a cysts

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9
Q

most common cyst of the jaw

A

radicular cyts

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10
Q

radicular cysts have what kind of border

A

corticated

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11
Q

healing cysts looks like

A

bone grows from outside in with rolled border

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12
Q

residual cyst happens

A

after extraction without curettage and lining is left

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13
Q

lateral periodontal cyst

A

75-80% in pm/canine area
mandible>max
associated with vital or nonvital cysts
less than 1cm

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14
Q

lat periodontal cyst can look like

A

lat radicular cyst. must test for vitality (nonvital can be both)

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15
Q

most common developmental odontogenic cyst

A

dentigerous cyst

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16
Q

features of dentigerous cyst

A

attached to the cemento-enamel junction of an unerupted tooth
most common with 3rd molars and max canines

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17
Q

clinical features of cysts

A

cortigated, well defined

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18
Q

t/f dentigerous cysts can grow very large

A

true

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19
Q

t/f most of the time, dentigerous cysts are unilocular

A

true

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20
Q

guidelines of dentigerous cysts

A

2-3mm hyperplastic follicle

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21
Q

what can be on the differential with dentigerous cysts

A

dentigerous cysts, okc, ameloblastoma..

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22
Q

tx of dentigerous cysts

A

enucleation of removal of the affected tooth
marsupialization with extraction
little tendency to recur when completely removed

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23
Q

eruption cyst

A

st analogue of a dentigerous cyst

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24
Q

what is in an eruption cyst

A

cystic fluid and/or blood bt an erupting tooth and the dental follicle, completely OUT OF the bone

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25
Q

if there is blood present, what color is an eruption cyst

A

purple

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26
Q

tx of an eruption cyst

A

usually none bc tooth will erupt

27
Q

t/f an eruption cyst is in the bone

A

false

28
Q

t/f an eruption cyst has the same histologic features as a dentigerous cyst

A

true. formed from the REE. you’d need the location and history in order to tell which one it is

29
Q

if tx is needed, for an eruption cyst, what do you do

A

enucleation, removal of associated tooth
marsupialization
excellent prognosis

30
Q

what was an odontogenic keratocyst formerly known as

A

keratocystic odontogenic tumor

31
Q

what cellls do odontogenic keratocysts arise from

A

dental lamina

32
Q

t/f odonotgenic cysts can occur in any odontogenic location

A

true

33
Q

t/f odonotgenic keratocys cause expansion in mandible

A

flase

34
Q

what cysts have daughter cysts

A

odontogenic keratocysts

35
Q

what cysts have the most growth potential than any other odontogenic cyst

A

odontogenic keratocyst

36
Q

t/f odonotgenic keratocysts have a higher rate of resorption

A

true

37
Q

radiographic features of an odontogenic keratocyst

A

well defined
corticated
uni or multilocular
can displace teeth, roots, and perforate cortical plate

38
Q

t/f can odontogenic keratocysts cause expansion in the ramus

A

true

39
Q

can a dentigerous cyst cause expansion

A

yes, and an okc can cause expansion only in the ramus

40
Q

in your differential dx of okc, what else woulld you include

A

benign odontogenic tumor, benign non-odontogenic tumor

41
Q

management of okc

A

surgical excision with peripheral ostectomy, carnoy solution (chemical peripheral osectomy)

42
Q

recurrence rate of okc

A

30%

43
Q

t/f okc can mimic other cysts and tumors

A

true

44
Q

t/f okc have an association with nevoid basal cell carinoma syndrome

A

true

45
Q

gorlin syndrome

A

nevoid basal cell carcinoma syndrome

46
Q

clinical findings of gorlin syndorme

A 
multiple basal cell carcinoma
multiple odotogenic keratocysts
calcified falx cerebri
rib anomalies
palmar plantar pits
ocular hypertelorism
enlarged head
spina bifida
47
Q

tx of gorlin syndrome

A

non life threatening
skin cancers important for prognosis
enucleation of keratocysts

48
Q

t/f a gorlin cyst can act as a cyst or solid benign neoplasm

A

true. aka calcifying cyctic odotogenic tumor

49
Q

t/f a calcifying odontogenic cyst can produce a calcifying product and have radiopaque areas

A

true

50
Q

the radiopaque cyst

A

calcifying odontogenic cyst (can sometimes be radiolucent)

51
Q

amount of calcifying odontogenic cysts that show radiopacities and are unerupted

A

30% and 30%

52
Q

most common odontogenic cyst or tumor that is on the gingiva, outside the bone

A

peripheral calcifying odontogenic cyst

53
Q

what cyst has ghost cells?

A

peripheral calcifying odontogenic cyst

54
Q

tx of calcifying odontogenic cyst

A

surgery, recurrence uncommon

55
Q

what is associated with buccal enamel extensions or enamel pearls

A

buccal bifurcation cysts

56
Q

buccal bifurcation cysts have the same histologic features as what

A

an inflamed dentigerous cyst or radicular cyst

57
Q

tx of buccal bifurcation cyst

A

enucleation

involved tooth can often be maintained

58
Q

gingival cyst of the adult is basically what

A

a lateral periodontal cyst on the gingiva in the area of the mand pms

59
Q

ginigval cyst of the adult has the smae histologic features as what

A

lateral periodontal cyst

60
Q

tx of gingival cysts of the adult

A

simple excision

excellent prognosis

61
Q

what is a cyst

A

pathologic sack of cavity with a central lumen lined by epithelium

62
Q

t/f cysts can become destructive if not treated

A

true

63
Q

general tx of cysts

A

simple enucleation or aggressive curettage

oral path 2 (8 decks)

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