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BDS 4: Oral Pathology > Odontogenic tumours > Flashcards

Odontogenic tumours Flashcards

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1
Q

What tumour is this?

A

Complex odontome

Dissolved enamel space, pink dentine visible with pulp formation visible in some

Not compound as these would be more organised and tooth like

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2
Q

What tumour is this?

A

Compound odontome

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3
Q

What tumour is this?

A

Odontgenic myxoma
Spindle cells (left)
Epethelial rests (right)

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4
Q

What type of odontogenic tumour is an Ameloblastoma?

A

Epithelial without odontogenic ectomesenchyme

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5
Q

What is the treatment for a benign cementoblastoma?

A

Complete excision

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6
Q

What type of odontogenic tumour is an Ameloblastic fibroma?

A

Epithelial with odontogenic ectomesenchyme

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7
Q

What is the treatment for an adenomatoid odontogenic tumour (AOT)?

A

Simple curretage

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8
Q

What tumour is this?

A

Benign cementoblastoma

Radiopaque mass with radiolucent margin

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9
Q

Is a Calcifying Epithelial Odontogenic Tumour benign or malignant?

A

Benign solid neoplasm

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10
Q

What type of odontogenic tumour is an Odontogenic myxoma?

A

Ectomesenchymal

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11
Q

Describe the appearance of a complex odontome

A

Irregular and confused mass of dental tissue bearing no resemblance to tooth shape

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12
Q

What type of tumour is this?

A

Ameloblastoma

Multilocular and well defined
‘Soap bubble’

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13
Q

What is the treatment for an adenomatoid odontogenic tumour (AOT)?

A

Simple curretage

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14
Q

What tumour is this?

A

Complex odontome

Dissolved enamel space, pink dentine visible with pulp formation visible in some

Not compound as these would be more organised and tooth like

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15
Q

What type of odontogenic tumour is a benign cementoblastoma?

A

Ectomesenchymal

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16
Q

What age group are more commonly seen with odontomes?

A

Under 20

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17
Q

Are ameloblastomas benign or malignant?

A

Benign

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18
Q

What tumour is this?

A

Adenomatoid odontogenic tumours (AOT)

Unilocular around a maxilla unerupted tooth

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19
Q

What is the treatment for a odntogenic myxoma?

A

Complete excision

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20
Q

What tumour is this?

A

Calcifying odontogenic cyst

Areas of opacity within radiolucency

21
Q

Where do adenomatoid odontogenic tumours (AOT) normally occur?

A

In the maxilla often assosciated with an unerupted tooth

22
Q

What type of tumour is this?

A

Ameloblastoma

Multilocular and well defined
‘Soap bubble’

23
Q

What are the 3 subdivisions odontogenic tumours?

A

Epethelial without odontogenic ectomesenchyme
Epethelial with odontogenic ectomesenchyme
Ectomesenchymal

24
Q

What type of tumour is this?

A

Ameloblastoma unilocular

25
Q

What tumour is this?

A

Calcifying odontogenic cyst

Ghost cells in upper third (cells with no nucleus)

Basal cell layer, above that stellate reticulum then ghost cells

26
Q

This is an image of a Calcifying Epithelial Odontogenic Tumour what features in this image confirm this?

A

Nuclear and cellular pleomorphism (different sized neucli and cells)

27
Q

What type of tumour is this?

A

Ameloblastoma (unilocular)

28
Q

What tumour is this?

A

Calcifying odontogenic cyst

Basal cell layer, above that stellate reticulum then ghost cells

29
Q

What type of odontogenic tumour is an Adenomatoid Odontogenic Tumours (AOT)?

A

Epithelial with odontogenic ectomesenchyme

30
Q

What is the treatment for an odontome?

A

Removal

31
Q

What type of odontogenic tumour is a Calcifying Odontogenic Cyst (Gorlin Cyst)?

A

Epithelial with odontogenic ectomesenchyme

32
Q

What tumour is this?

A

Odontogenic myxoma

Multi-locular radiolucency

33
Q

What tumour is this?

A

Ameloblastoma

34
Q

Are majority ameloblastomas multi or uni locular?

A

Multilocular (85-90%)

35
Q

What is the treatment for an ameloblastic fibroma?

A

Simple enucleation

36
Q

What tumour is this?

A

Calcifying odontogenic cyst

Areas of opacity within radiolucency

37
Q

What is the treatment for an Ameloblastoma?

A

Surgical excision with a margin

38
Q

What tumour is this?

A

Compound odontome

39
Q

Describe the appearance of a compound odontome

A

Multiple small tooth like denticles

40
Q

What tumour is this?

A

Adenomatoid odontogenic tumour

Can be seen by the circular ‘ducts’ and whirly pattern made by the cells

41
Q

What type of odontogenic tumour is a Calcifying Epithelial Odontogenic Tumour (CEOT)?

A

Epithelial without odontogenic ectomesenchyme

42
Q

What tumour is this?
What is highlighted on the image?

A

Ameloblastoma
Basaloid epethelium

43
Q

What is the treatment for a Calcifying epethelial odontogenic tumour?

A

Surgical excision with a margin

44
Q

Ameloblastic fibroma and ameloblastoma look very similar on xrays, how can you differentiate between them?

A

Ameloblastic fibroma presents at a much younger age (Under 20)
Where as ameloblastoma presents at (over 20 (median 35))

45
Q

What type of tumour is this?

A

Calcifying odontogenic tumour

Scattered small radiopacities within radiolucent region

46
Q

What tumour is this?

A

Benign cementoblastoma

Cellular cementum attached to tooth root

47
Q

What tumour is this?

A

Complex odontome

48
Q

What type of odontogenic tumour is an odontome?

A

Epithelial with odontogenic ectomesenchyme

49
Q

What is the treatment for a calcifying odontogenic cyst?

A

Enucleation

BDS 4: Oral Pathology (12 decks)

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