Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Path Exam 5 > Odontogenic cysts > Flashcards

Odontogenic cysts Flashcards

1
Q

What is odontogensis?

A

Odontogenesis starts with surface ectoderm (epithelium) growing into jaw (dental lamina) and producing the tooth germ, a portion of which is the enamel organ.

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

Definition of odontogensis cyst?

A

Pathologic cavity lined by odontogenic epithelium and filled with fluid or semisolid material

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

What it the etiology of Odontogenesis cyst?

A
  1. Inflammation
  2. Unknown, these are called developmental cysts but are not
    inflammatory
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the two types of inflammation cyst

A
  1. Radicular cyst

2. buccal bifurcation cyst are inflammatory, all the rest are developmental

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

What is Primordial cyst

A

Cyst arising from degeneration of enamel organ prior to tooth formation aborts odontogenesis resulting in radiolucency in place of a missing tooth. ↑↑ Md3M.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where are primordial cyst found highly

A

MD3M

mandibular 3rd molar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Dentigerous Cyst (Follicular Cyst)

A

Cyst resulting from separation of the follicle from around the crown of developing toot

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

Where do you mostly see the Dentigerous cyst?

A

↑ Md3M, ↑ MxCu,asymptomatic, usually no expansion

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

Radiographic finding of Dentigerous Cyst (Follicular Cyst)

A

Well circumscribed pericoronal radiolucency. From CEJ around crown.

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

Histology of Dentigerous Cyst (Follicular Cyst)

A

Stratified squamous epithelium without keratinization (this was originally the ameloblasts which following odontogenesis becomes reduced enamel epithelium).

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

How to treat DEntigerous cyst

A

urgical removal of tooth and cyst if 3M. For Cu may be able to decompress and pull Cu in orthodontically

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the two types of Dentigerous Cyst (Follicular Cyst)

A

A. Eruption cyst – a dentigerous cyst that gets pushed into oral cavity by erupting tooth, may treat with decompression so tooth can erupt
B. Lateral - ↑Md 3M – laterally placed

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

Can Dentigerous cyst be neoplastic

3 types of cancer associated with it?

A

Ameloblastoma
Squamous cell carcinoma Mucoepidermoid carcinoma

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

What are the 2 types of periodontal cyst

A

Apical Periodontal Cyst (radicular cyst)

Lateral Periodontal cyst

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

What is the most common odontogenic cyst

A

Apical Periodontal Cyst (radicular cyst)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What kind of cyst is Apical Periodontal Cyst (radicular cyst) ?

A

Inflammatory secondary to devitalized pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Two types of Apical Periodontal Cyst (radicular cyst) which is a most common odontogenic cyst

A

Lateral radicular cyst

Residual cyst

18
Q

Where does Lateral Periodontal cyst arise from

and it found mostly on what tooth

A

arises from cystic degeneration of rests of Malassez in PDL. Teeth vital, ↑↑ MdCu-Bi.

19
Q

What are the radiographic finding in Lateral Periodontal cyst?

A

Small well circumscribed radiolucency along lateral root surface of vital tooth.

20
Q

What is the histologic finding in Lateral Periodontal cyst?

A

Nonkeratinizing stratified squamous epithelial lining

21
Q

How to treat Lateral Periodontal cyst?

A

Excision

22
Q

What are the variation of Lateral Periodontal cyst?

A

Botryoid odontogenic cyst – polycystic, multilocular, may recur after removal.

23
Q

Is there a treatment for this cyst?

A

  1. Very common
  2. Congenital or early life
  3. ## Small yellowish elevationsWill self-marsupialize and heal
24
Q

It is common in what tooth
—–

Is there a treatment for this cyst?

A

↑↑ MdCu-Bi clinically similar to mucocele but mucoceles don’t occur on gingiva
—————————————
Excision

25
Q

Where does Odontogenic Keratocyst originate from?

what is percentage of parakeratinzied cyst?
what is percentage of orthokeratinized cyst?

A

90% parakeratinized
10% orthokeratinized (orthokeratinized odontogenic cyst)

26
Q

where is parakeratinzied cyst

more common? what age group?

A

All ages, ↑ 2-3 and 6-7 decades, Md:Mx, 2:1, ↑ post Md. 1⁄4 expansion ± drainage and pain, clinically aggressive

27
Q

what is radiograph and histological finding of parakeratinzied?

A

Histologic findings: Parakeratotic stratified squamous epithelial lining with well developed and palisaded and hyperchromatic basal cells; often daughter or
microcysts in the wall

28
Q

what is treatment/prognosis of parakeratinized cyst?

A

Conservative surgical removal to resection to decompression.

About 1/3 recur

29
Q

Basal cell nevus-bifid rib syndrome?

A

(Nevoid basal cell carcinoma syndrome)
About 5% of patients with keratocyst have, almost all multiple OKCs Autosomal dominant (mutation of a tumor suppressor gene 9q22), basal cell carcinomas (not nevi; not limited to sun-exposed areas or elderly), calcification of falx cerebri, bone anomalies (bifid ribs), OKCs usually multiple, pits in palms and soles.

30
Q

what are Keratocysts known for?

A
  1. Clinical aggressiveness
  2. Recurrence after removal
  3. Association with basal cell nevus-bifid rib syndrome
31
Q

Characteristics of Orthokeratinized odontogenic cyst

A

Smaller, less aggressive, minimal recurrence, not associated with syndrome

32
Q

What are radiographic, histological and treatment of VIII. Calcifying odontogenic cyst (Gorlin Cyst)?

A

Histologic findings: Fully or partially cystic, cystic epithelium contains ghost cells (prematurely keratinized) which tends to calcify
——————————————-
Treatment: Conservative surgical removal – low recurrence

33
Q

Characteristics of VIII. Calcifying odontogenic cyst (Gorlin Cyst)?
= age?
= mandibular or maxillary?
= other name

A

“Pindborg Tumor” “CEOT”

34
Q

-what are radiographic, histological and treatment of IX. Glandular Odontogenic Cyst?

A

Histologic findings: Cyst showing glandular differentiation (mucus cells, columnar epithelium with cilia, lumina)
————————————-
Treatment: Surgical excision 30-50% recurrence.

35
Q

what is characteristic of Glandular Odontogenic Cyst? where doe it occur?

A

↑ Md, may be large

36
Q

Where does Buccal Bifurcation Cyst Paradental Cyst

occur and what kind of cyst is it?

A

Inflammatory cyst occurring on buccal of erupting tooth

Paradental Cyst

37
Q

In what teeth does Buccal Bifurcation Cyst Paradental Cyst occur? children or adults?

A

↑↑↑ children

↑↑ Md1M (often enamel extension into furcation) Buccal swelling

38
Q

Radiographic, histological and treatment of Buccal Bifurcation Cyst Paradental Cyst?

A

Histologic findings: Inflamed cyst lined by stratified squamous epithelium
———————
Treatment: Enucleation of cyst. If you recognize this clinically which you should, you do not have to extract the to
oth

39
Q

what kind of cyst is odontogensis cyst?

A

It is developmental not inflammatory

40
Q

what kind of cyst has Small yellowish elevations

A

Newborn (dental lamina cyst) on gingival cyst

41
Q

what is adult gingival cyst clinically similar to?

A

clinically similar to mucocele but mucoceles don’t occur on gingiva

Oral Path Exam 5 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions