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Radiographic Interpretation > Midterm Review > Flashcards

Midterm Review Flashcards

1
Q

Describe the radiographic findings of a dentigerous cyst:

A
  1. consistency widened follicular space of greater 3 mm
  2. well-delineated radiolucency with corticated borders
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2
Q

With a dentigerous cyst, the cyst lining arises from remnants of the:

A

dental follicle

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3
Q

Accounts for 20% of jaw cysts:

A

dentigerous cyst

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4
Q

Describe the age/sex/site most common for dentigerous cyst:

A
  1. highest incidence in 20s & 30s
  2. most common in mandibular 3rd molars and maxillary canines and can affect any impacted tooh
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5
Q

Describe the possible treatments for dentigerous cysts:

A
  1. enucleate
  2. degree of surgery is dependent on size of tumor
  3. potential for degeneration of the cyst lining to an ameloblastoma or squamous cell carcinoma
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6
Q

What are potential risks for a dentigerous cyst?

A

ameloblastoma or squamous cell carcinoma

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7
Q
A

dentigerous cyst

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8
Q
A

dentigerous cyst

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9
Q
A

dentigerous cyst

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10
Q
A

expansion of dentigerous cyst

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11
Q

Presents as a soft fluid filled swelling of crestal mucosa in an area of an eruption tooth:

A

eruption cyst

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12
Q

An eruption cyst often has ____ coloration due to ___

A

blueish; trauma creating blood in cystic fluid

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13
Q

Radiographically for an eruption cyst you may see:

A

lack of crystal alveolar bone because of position of erupting crown and cyst near crest

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14
Q

Age/sex/site for an eruption cyst:

A
  • less than 10 years of age in the mixed dentition stage
  • most common in the mandibular molar region
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15
Q

Management for an eruption cyst include:

A
  1. often rupture sponatenously
  2. some may require simple exicsion
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16
Q
A

eruption cyst

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17
Q
A

eruption cyst

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18
Q

a mixed odontogenic tumor:

A

amelobalstic fibroma

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19
Q

radiographically- an ameloblastic fibroma may be seen as:

A

pericoronal radiolucency associated with a developing tooth:

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20
Q

age/sex/site most common for an ameloblastic fibroma:

A
  1. 70% of cases are less than 20 years old
  2. mean age 14-15.5 years
  3. highest incidence in mandibular molar to premolar region
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21
Q

Describe the management for an ameloblastic fibroma:

A

enucleation with 20% recurrence

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22
Q

a mixed odontogenic tumor, similar to amelobastic fibroma but has mineralized stroma:

A

ameloblastic fibrodontoma

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23
Q

What happens if mineralization is high in an amelobasltic fibroodontoma

A

radiopaque flecks may be evident radiographically

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24
Q

Radiographically how does an ameloblastic fibroodontoma appear?

A

pericoronal radiolucency associated with a developing tooth with radiopaque flecks in the lumen

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25
Q

Age/sex/site for an ameloblastic fibroodontoma:

A
  • mean age 15 years
  • posterior mandibule
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26
Q

Treamtnent for an amelobalstic fibroodontoma:

A

must be differentiated from odontoameloblastoma as the latter is more aggressive

27
Q
A

ameloblastic fibroma

28
Q
A

ameloblastic fibroma

29
Q
A

ameloblastic fibroma

30
Q
A

ameloblastic fibroma

31
Q
A

ameloblastic fibroodontoma

32
Q
A

ameloblastic fibroodontoma

33
Q
A

ameloblastic fibroodontoma

34
Q

Rare tumor that must be differentiated from ameloblastic fibroodontoma as it is more aggressive and requires surgical resection:

A

odontoameloblastoma

35
Q

Describe the radiographic appearance of odontoameloblastoma:

A
  1. expansive with destruction of adjacent bone
  2. rudimentary tooth-like structures similar to complex odontoma
36
Q

Age/sex/location for odontoameloblastoma:

A

teens & children
mainly in mandible

37
Q

3-7% of odontogenic tumors:

A

adenomatoid odontogenic tumor

38
Q

histologically a cross between a dentigerous cyst and an ameloblastoma

A

adenomatoid odontogenic tumor

39
Q

odontogenic epithelium is arranged in duct-like glandular array:

A

adenomoatoid odontogenic tumor

40
Q

Consistently widened follicular space of greater than 3mm if associated iwht crown of impacted teeth (75percent of cases are pericoronal)

A

adenomatoid odontogenic tumor

41
Q

Radiographically how do we see an adenomatoid odontogenic tumor?

A

well delineated radiolucency with corticated border (usually greater than 3 cm)

42
Q

Age/sex/location most common for adenomatoid odontogenic tumor

A

Females to males 2:1
adolescents (10-19 years)
anterior jaws
more common in maxilla

43
Q

Treament of adenomatoid odontogenic tumor:

A

enucleation and recurrence

44
Q
A

adenomatoid odontogenic tumor

45
Q
A

adenomatoid odontogenic tumor

46
Q
A

adenomatoid odontogenic tumor

47
Q
A

adenomatoid odontogenic tumor

48
Q
A

adenomatoid odontogenic tumor

49
Q

Approximately 50% of pindborg tumors occur with:

A

impacted teeth

50
Q

radiographically describe a pindborg tumor may appear:

A
  1. radiopaque flecks due to calcified amyloid
  2. breakdown product of neoplastic epithelial cells (these mineralizations are called Leisengangs rings)
51
Q

Age/sex/site most common for pindborg tumors:

A

mean age of 40 years
mandible: maxilla 2:1
poster mandible

52
Q

Pindborg tumor treatments:

A

large lesion require en bloc resections

53
Q

Pindborg tumor =

A

calcifying epithelial odontogenic tumor

54
Q
A

pindborg tumor

55
Q
A

pindborg tumor (calcifying epithelial odontogenic tumor)

56
Q
A

pindborg tumor

57
Q

Extremely variable presentation with approximately 2-16% behaving as neoplasms:

A

gorlin cyst

58
Q

Gorlin cyst=

A

calcifying odontogenic cyst

59
Q

Gorlin cyst size:

A

2cm -12 cm

60
Q

Gorlins cysts are commonly seen in ____ population and ___ area:

A
  • occur at any age but commonly diagnosed in teens & young adults
  • no sex favors
  • 65% in anterior maxilla
61
Q

Treatment for gorlins cyst:

A

simple enucleation with minimal recurrence

62
Q
A

Gorlins cyst

63
Q
A

Radiographic Interpretation (10 decks)

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