Chapter 15

Question 1

Which one of the following odontogenic lesions is more common in the maxilla than the mandible?

Adenomatoid odontogenic tumor

Ameloblastic fibroma

Calcifying epithelial odontogenic tumor

Lateral periodontal cyst

Odontogenic keratocyst

Answer 1

Adenomatoid odontogenic tumor

Question 2

Which one of the following is the most common presenting sign/symptom of the compound odontoma?

Bluish swelling of the gingiva

Failure of eruption of a permanent tooth

Pain upon mastication

Spontaneous abscess formation

Spontaneous crevicular bleeding

Answer 2

Failure of eruption of a permanent tooth

Question 3

What is the inheritance pattern of the nevoid basal cell carcinoma syndrome?

Answer 3

autosomal dominant

Question 4

Which one of the following odontogenic tumors is most common?

Adenomatoid odontogenic tumor

Ameloblastoma

Odontogenic fibroma

Odontogenic myxoma

Squamous odontogenic tumor

Answer 4

Ameloblastoma

Question 5

The nevoid basal cell carcinoma syndrome is caused by a mutation of which gene?

Answer 5

Patched (PTCH) gene

Question 6

The most common location for the lateral periodontal cyst is:

Answer 6

mandibular bicuspid area

Question 7

By definition, a dentigerous cyst must occur:

Answer 7

in association with the crown of an unerupted tooth.

Question 8

The lateral periodontal cyst is most closely related to what other odontogenic cyst?

Answer 8

Gingival cyst of the adult

Question 9

The botryoid variant of the lateral periodontal cyst got its name because:

Answer 9

The botryoid variant of the lateral periodontal cyst got its name because:

Question 9

The most so-called primordial cysts are microscopically diagnosed as:

Answer 9

odontogenic keratocysts.

Question 10

The most common site for the glandular odontogenic cyst is:

Answer 10

anterior mandible.

Question 11

Approximately what percentage of ameloblastomas occur in the mandible?

Answer 11

85%

Question 12

Which microscopic variant of ameloblastoma often presents radiographically as a mixed radiolucent and radiopaque lesion?

Answer 12

Desmoplastic ameloblastoma

Question 13

A microscopically typical ameloblastoma that happens to metastasize to regional lymph nodes is known as:

Answer 13

malignant ameloblastoma.

Question 14

Which one of the following odontogenic cysts has the highest recurrence rate?

Calcifying odontogenic cyst
Dentigerous cyst
Glandular odontogenic cyst
Lateral periodontal cyst
Periapical cyst

Answer 14

Glandular odontogenic cyst

Question 15

The adenomatoid odontogenic tumor is frequently associated with an impacted tooth. Which impacted tooth is most likely to be involved?

Answer 15

tooth #6

Question 16

Which one of the following microscopic variants of ameloblastoma has the lowest recurrence rate?

Answer 16

Unicystic

Question 17

Which one of the following odontogenic cysts is often associated with an odontoma?

Answer 17

Calcifying odontogenic cyst

Question 18

If left untreated, an ameloblastic fibro-odontoma would most likely evolve into which lesion?

Answer 18

Complex odontoma

Question 19

Which odontogenic cyst may sometimes be associated with the nevoid basal cell carcinoma syndrome?

Answer 19

Odontogenic keratocyst

Question 20

Which one of the following is NOT a feature of the nevoid basal cell carcinoma syndrome?

Answer 20

Diabetes insipidus

Question 21

All of the following statements about ameloblastoma are true EXCEPT:

Ameloblastoma may present as either a unilocular or multilocular radiolucency.

Ameloblastomas are more common in the mandible than the maxilla.

Ameloblastomas are more common in the posterior jaw than the anterior jaw.

Ameloblastomas are most common in young adults.

Ameloblastomas are usually best treated with curettage and have a low recurrence rate.

Answer 21

Ameloblastomas are usually best treated with curettage and have a low recurrence rate.

Question 22

Which one of the following odontogenic tumors occasionally is associated with a central giant cell granuloma?

Answer 22

Central odontogenic fibroma

Question 23

Which one of the following odontogenic lesions has the highest recurrence rate?

Adenomatoid odontogenic tumor

Ameloblastic fibro-odontoma

Complex odontoma

Dentigerous cyst

Odontogenic myxoma

Answer 23

Odontogenic myxoma

Question 24

Which one of the following lesions is also known as a Pindborg tumor?

Adenomatoid odontogenic tumor

Ameloblastic fibro-odontoma

Calcifying odontogenic cyst

Odontogenic keratocyst

None of the above

Answer 24

NA

Question 25

The eruption cyst is really a variant of the:

Answer 25

dentigerous cyst.

Question 26

In addition to amyloid that is deposited in various body tissues in systemic amyloidosis, amyloid-like proteins sometimes are discovered within certain tumors. Which one of the following odontogenic tumors often contains amyloid?

Answer 26

Calcifying epithelial odontogenic tumor

Question 27

Recurrence after surgery is LEAST likely with which one of the following lesions?

Answer 27

Ameloblastic fibro-odontoma

Question 28

The microscopic hallmark of the calcifying odontogenic cyst is:

Answer 28

ghost cell keratinization.

Question 29

The radiographic appearance of the odontogenic myxoma is most likely to mimic:

Answer 29

ameloblastoma.