Odontogenic tumors Flashcards

1
Q

Name the Ectodermal (Epithelial) odontogenic tumors

A

Ameloblastoma
Calcifying Epithelial Odontogenic Tumor (pindborg tumor or CEOT)
Adenomatoid Odontogenic Tumor (AOT)
Squamous Odontogenic Tumor (SOT)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Clinical aspects of Ameloblastoma

A

Affects all ages (&raquo_space; middle age)
Most are painless
+- cortical expansion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where are ameloblastomas most common

A

75% Mandible (posterior)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the radiographic aspects of ameloblastomas

A

May be pericoronal
Always radiolucent
Fairly well circumscribed
Classically multilocular, move teeth, root resorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Treatment of ameloblastomas

A
Surgical 
Aggressive curettage (50% recur) vs resection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the 4 variants of ameloblastomas

A
  • Peripheral (extrosseous) - less aggressive
  • Unicystic - cyst in which it is confined
  • Malignant ameloblastoma - benign - metastasizes
  • Ameloblastic carcinoma - histologic features of malignancy, aggressive, metastasizes.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe how to diagnose a unicystic ameloblastoma

A

Cannot definitively diagnose on incisional biopsy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Clinical aspects of Pindborg Tumors. Where is it found most commonly?

A

Affects all ages

|&raquo_space; Mandible, midbody

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Radiographic aspects of Pindborg Tumors

A

Lucent to mixed lucent/opaque (“driven snow”)

Often associated with unerupted teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Treatment of Pindborg Tumors

A

Surgical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Clinical aspects of Adenomatoid Odontogenic Tumors (AOT)

A
  • Affects mostly individuals in 1-3 decades (Teens)
  • Affects Females more often
  • More common in unerupted teeth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where are Adenomatoid Odontogenic Tumors most commonly found?

A

> > Maxilla, 3/4 anterior jaws

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Radiographic aspects of Adenomatoid Odontogenic tumors

A

Lucent (pericoronal), may contain flecks of opacity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Treatment of Adenomatoid Odontogenic tumors

A

Enucleation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Name the Mesodermal (Connective tissue) odontogenic tumors

A
  • Central Odontogenic fibroma
  • Peripheral Odontogenic fibroma
  • Odontogenic Myxoma
  • Cementum lesions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Clinical aspects of Peripheral Odontogenic fibroma?

A

(covered under non-neoplastic lesions)

  • Reactive gingival lesion of PDL origin
  • More common in young people
  • More common in anterior gingiva
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Clinical aspects of Odontogenic myxoma

A

Affects all ages (Increased in young)
Asymptomatic
+- Expansion

18
Q

Radiographic aspects of Odontogenic Myxoma

A

Lucency often containing residual opaque trabeculae

19
Q

Treatment of Odontogenic myxoma

A

Block resection

20
Q

Name the types of Cementum lesions

A
  • Central cemento-ossifying fibroma
  • Benign cementoblastoma (true cementoma)
  • Gigantiform cementoma
21
Q

Which Cementum lesion is a neoplasm of PDL origin

A

Central cemento-ossifying fibroma

22
Q

Clinical aspects of central cement-ossifying fibroma

A
  • Affects Adults
  • more commonly in Females
  • More commonly in Blacks
  • More commonly in Mandible
    Asymptomatic & +-Expansion
23
Q

Radiographic aspects of central cemento-ossifying fibroma

A

Well circumscribed
Associated with tooth roots
Completely lucent to mixed lucent/opaque to mostly opaque.

24
Q

Treatment of Cemento-ossifying fibroma

A

Enucleation

25
Clinical aspects of Benign cementoblastoma
Seen in people of 2-4 decades. - More commonly seen in Mandible (Md 1st molar) - Pain and/or expansion - Tooth vital/vs condensing osteitis - non vital
26
Radiographic aspects of Benign cementoblastoma
Pathognomonic - sclerotic mass with peripheral radiolucent zone. Fused with tooth root
27
Treatment of Benign cementoblastoma
Surgical removal | Recurrence 0-37%
28
Clinical aspects of Gigantiform Cementoma
Must be autosomal dominant
29
Radiographic aspects of Gigantiform Cementoma
Multiquadrant globular opacities
30
Treatment of Gigantiform Cementoma
Usually, none
31
Name the Mixed (epithelial & Connective tissue) Odontogenic tumors
Ameloblastic fibroma Ameloblastic fibro-odontoma Odontoma
32
Clinical aspects of Ameloblastic fibroma
Young, 1-3 decades >> Posterior Mandible Asymptomatic
33
Radiographic aspects of Ameloblastic fibroma
Always lucent
34
Treatment of Ameloblastic fibroma
Surgical removal
35
Variant of Ameloblastic fibroma
Ameloblastic fibrosarcoma - rare malignant transformation of mesenchymal component
36
Clinical aspects of Ameloblastic fibro-odontoma
Young, 1-3 decades | Asymptomatic
37
Radiographic aspects of Ameloblastic fiber-odontoma
Mixed lucent/opaque, often overlying unerupted tooth.
38
Treatment of Ameloblastic fibro-odontoma
Surgical removal
39
Clinical aspects of Odontoma
* *Most common odontogenic tumor. Viewed as a developmental hamartoma, not a neoplasm - Young, 1-3 decades - Asymptomatic
40
Radiographic aspects of Odontoma
Radiopaque with thin lucent border (follicle) often overlying unerupted teeth. - Compound --> tooth-like, >> Anterior jaws - Complex -->random deposition, >> Posterior jaws
41
Treatment of Odontomas
Surgical removal
42
Complications of Odontomas
Dentigerous cysts, Ameloblastoma