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Oral Pathology 2020 > Chapter 15 lecture 2 > Flashcards

Chapter 15 lecture 2 Flashcards

1
Q

What is the recurrence rate of an orthokeratinized odontogenic cyst?

A

-2%

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2
Q

Where is the most common place that the lateral periodontal cyst occurs?

A

-Mandibular canine and premolar area and lateral incisor area

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3
Q

What does a lateral periodontal cyst arise from?

A

-Rests of dental lamina

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4
Q

What age of pts do you find a lateral periodontal cyst in?

A

40-60

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5
Q

Are teeth vital or non vital in a lateral periodontal cyst?

A

-Vital

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6
Q

What is a botryoid odontogenic cyst?

A

-A multilocular (polycystic) lateral periodontal cyst

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7
Q

T/F Recurrence and/or malignant transformation of a lateral periodontal cyst is exceedingly common

A

False

-Exceedingly rare

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8
Q

What is a calcifying odontogenic cyst aka?

A

-Gorlin cyst

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9
Q

What did the WHO reclassify the calcifying odontogenic cyst as?

A

-Calcifying cystic odontogenic tumor

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10
Q

Where do you typically cyst a Gorlin cyst?

A

-Incisor-canine area equally in the mandible and maxilla

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11
Q

What is the avg age of a pt who gets a calcifying odontogenic cyst?

A

35

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12
Q

What cyst is associated with an odontoma?

A

-Calcifying odontogenic cyst

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13
Q

What histopathologic features are associated with a calcifying odontogenic cyst?

A

-Ghost cells that can calcify

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14
Q

What is a developmental cyst with glandular and/or salivary gland features?

A

-Glandular odontogenic cyst

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15
Q

What do you see in the radiolucencies in a calcifying odontogenic cyst?

A

-Radioopacities

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16
Q

What is the avg age of someone who gets a glandular odontogenic cyst?

A

-50

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17
Q

Do most of the cases of glandular odontogenic cysts occur in the maxillary or mandible?

A

-Mandible in the anterior jaws

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18
Q

What are four cysts that cross the midline

A
  • Traumatic bone cyst
  • Odontogenic keratocyst
  • Glandular odontogenic cyst
  • Central giant cell granuloma
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19
Q

What percent of Glandular odontogenic cysts will recur?

A

-30%

20
Q

What type of resection is used to remove a glandular odontogenic cyst?

A

-En bloc

21
Q

What is an inflammatory cyst with uncertain pathogenesis?

A

-Buccal bifurcation cyst

22
Q

Where does a buccal bifurcation cyst characteristically develop at?

A

-Buccal aspect of the mandibular first permanent molar

23
Q

What age does buccal bifurcation cyst usually occur in?

A

-children around 10

24
Q

How many cases of buccal bifurcation cyst are bilateral?

A

1/2

25
Q

What is the avg size of a buccal bifurcation cyst?

A

1.5 mm

26
Q

The root apices in a buccal bifurcation cyst are tipped in what direction?

A

-Lingual mandibular cortex

27
Q

T/F Carcinoma arising within bone is rare and essentially limited to the jaws

A

True

28
Q

where do most odontogenic carcinomas arise from?

A

-Odontogenic cysts

29
Q

What are the two most common presenting symptoms of a carcinoma arising in odontogenic cysts?

A

-Pain and sweilling

30
Q

What do odontogenic carcinomas mimic?

A

-Odontogenic cysts

31
Q

What is the most common clinically significant odontogenic tumor?

A

-Ameloblastoma

32
Q

What is the origin of an ameloblastoma?

A

-Odontogenic epithelial origin

33
Q

What are the three different types of ameloblastomas?

A
  • Conventional solid or multicystic
  • Unicystic
  • Peripheral
34
Q

What is the most common type of an ameloblastoma?

A

-Conventional solid or multicystic

35
Q

What gender does ameloblastomas occur more commonly in?

A

-Equal between male and female

36
Q

What age group do you see an ameloblastoma?

A

-30-70

37
Q

Where is the most common place to find an ameloblastoma?

A

-Posterior mandible in the ascending ramus area

38
Q

Is an ameloblastoma symptomatic or asymptomatic?

A

-Asymptomatic

39
Q

How is the only way you can detect a small ameloblastoma?

A

-X-ray

40
Q

If there is a clinical sign of an ameloblastoma what is it most often?

A

-Painless swelling

41
Q

How do you describe an ameloblastoma in a radiograph?

A
  • Soap bubble (large)

- Honeycombed (Small)

42
Q

T/F Buccal and lingual cortical expansion is not seen with an ameloblastoma

A

False

-It is frequently present

43
Q

T/F Root resoprtion is common in an ameloblastoma

A

True

44
Q

The desmoplastic ameloblastoma does not share features with the other forms, what are its features?

A
  • Predilection for the anterior maxilla

- Mixed radiolucent-radiopaque

45
Q

What are the histopathologic features of an ameloblastoma?

A
  • Palisading
  • Hyperchromatic basal layer
  • Reverse polarity
  • Apical vacuolization

Oral Pathology 2020 (38 decks)

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