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PATH II > developmental and odontogenic cysts day 4 > Flashcards

developmental and odontogenic cysts day 4 Flashcards

1
Q

Adenomatoid Odontogenic Tumor radio app

A

mixed density/ unilocular lucency

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2
Q

Adenomatoid Odontogenic Tumor demographic and location

A
  • Teenagers - 75%
  • Female - 2:1
  • Maxilla - 2:1
  • Anterior - 75%
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3
Q

dif dx

A

adenomatoid odontogenic tumor
OKC/OOC
dentigerous cyst
ameloblastic fibroma
odontogenic fibroma

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4
Q

why can adenomatoid odontogenic tumors present as mixed

A

there can be some calcification surrounding the tooth

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5
Q

dif dx?

A

adenomatoid odontogenic tumor likely (canine impacted=anterior)
ca epithelial odontogenic tumor
ameloblastic fibro-odontoma

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6
Q

Adenomatoid Odontogenic
Tumor histo

A

swirling pattern= zellbella pattern
pseudoducts present (one row of cells instead of two)=pathognomic
calcifications may be present as well

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7
Q

biopsy from ant. maxilla of teenage girl, impacted canine with a well defined luceny

A

Adenomatoid Odontogenic
Tumor

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8
Q

biopsy from ant. maxilla of teenage girl:

A

Adenomatoid Odontogenic
Tumor

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9
Q

Calcifying Epithelial Odontogenic Tumor demo and location

A
  • Adults (Mean = 40 y)
  • Posterior mandible - molar-ramus region
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10
Q

Calcifying Epithelial Odontogenic Tumor
recurrence and agression

A
  • Recurrence, but less aggressive than ameloblastoma
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11
Q

what could this be (2)

A

calcifying epithelial odontogenic tumor
calcifying odontogenic cyst

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12
Q

calcifying epithelial odontogenic tumor radio

A

multilocular luceny with opacities present

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13
Q

dif dx? (2)

A

Calcifying Epithelial Odontogenic Tumor
ameloblastic fibro-odontoma

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14
Q

what could this be (4)

A

OKC (luceny is not mixed)
Ca epi odontogenic tumor
glandular odontogenic cyst
unicystic ameloblastoma

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15
Q

Calcifying Epithelial Odontogenic Tumor structure/histo

A
  • A solid epithelial tumor (not cystic)
  • Pink polygonal polyhedral epithelial cells
  • Contains amyloid
  • Concentric Liesegang ring calcifications
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16
Q

biopsy from 55 y/o man posterior man, unilocular lucency with some opacities

A

calcifying epithelial odontogenic tumor, pink polygonal polyhedral cells

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17
Q
A

Calcifying Epithelial Odontogenic Tumor, pink polygonal polyhedral cells

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18
Q

biopsy of a tumor from the posterior man of a 60 y/o male, radio app: well defined multilocular lucency with radio opacities

A

Calcifying Epithelial Odontogenic Tumor, pink polygonal polyhedral cells and amyloid (would app green with congo red stain)

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19
Q

biopsy from posterior man of 40 y/o man, presented as a multilocular mixed lucency

A

Calcifying Epithelial Odontogenic Tumor, pink polygonal polyhedral cells and liesing ring Ca

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20
Q

Odontogenic Myxoma derived from?

A
  • Ectomesenchymal odontogenic neoplasm
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21
Q

Odontogenic Myxoma demo/location

A
  • Young adults (Mean = 30 y)
  • The mandible more commonly involved than the maxilla
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22
Q

Odontogenic Myxoma radio app

A
  • A radiolucency, often multiolcular, may cross midline
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23
Q

Odontogenic Myxoma recurrence

A
  • An unencapsulated lesion - recurrence is common
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24
Q

what other lesion (aside from odontogenic myxoma) crosses midline often

A

glandular odontogenic cyst

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25
Q

what could be the lesion in the posterior L man?

A

well defined multilocular radiolucency:
odontogenic myxoma
odontogenic fibroma
aneurysmal bone cyst
ameloblastoma
OKC

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26
Q

dif dx

A

odontogenic myxoma
glandular odontogenic cyst
ameloblastoma
OKC

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27
Q

odontogenic tumor tx

A

agressive removal due to recurrence

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28
Q

Odontogenic Myxoma histo
resembles?
dif term?
variable component?

A
  • Resembles dental papilla, with stellate and spindled cells in a myxoid extracellular matrix
  • Termed myxofibroma if there is increased collagen
  • Odontogenic rests variable
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29
Q

which sides are what?

A

dental papilla on L and odonto myxoma on R

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30
Q

which sides are what?

A

dental papilla on L and odonto myxoma on R, myoxma may be less cellular and have more conn tissue

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31
Q

Odontogenic Fibroma types

A
  • Central Odontogenic Fibroma: Simple type, World Health Organization (WHO) type
  • Peripheral Odontogenic Fibroma
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32
Q

Odontogenic Fibroma demo

A
  • Most common in adult females (2 : 1) (mean age = 40 y)
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33
Q

odontogenic fibromas often associated with?

A
  • One-third of cases are associated with an unerupted tooth
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34
Q

odontogenic fibroma radio. app
where?

A
  • Well-circumscribed unilocular or multilocular lucency of anterior maxilla and posterior mandible
  • +/- radiopaque flecks
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35
Q

odontogenic fibroma location

A

often posterior mandible of anterior maxilla

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36
Q

odontogenic fibroma tx

A

Treatment by enucleation and vigorous curettage

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37
Q

Odontogenic Fibroma histo/types

A
  • Mature, fibrous stroma with varying amounts of inactive odontogenic epithelium
  • Epithelium-poor type - simple type
  • Epithelium-rich type - complex type (WHO-type)
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38
Q

biopsy from posterior man of adult female, well defined multilocular luceny with opaque flecks.
associated with unerupted tooth.
diagnosis? tx?

A

simple type odontogenic fibroma, treatment by enucleation and vigorous curettage

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39
Q

biopsy from 45 y/o female anterior maxilla, presented as a well-defined multilocular lucency

A

odontogenic fibroma, more epithelium present=complex type

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40
Q

biopsy from 40 y/o adult female anterior maxilla presented as a unilocular lucency with opaque flecks

A

odontogenic fibroma with calcification present

41
Q

what causes opacity flecks with odontogenic fibromas

A

calcifications

42
Q

what causes opacity flecks with odontogenic fibromas

A

calcifications

43
Q

can there be peripheral odontogenic fibromas?

A

yes, no radio app

44
Q

what causes opacity flecks with odontogenic fibromas

A

calcifications

45
Q

Cementoblastoma demo

A
  • Neoplasm
  • Young adults < 25 years
46
Q

what causes opacity flecks with odontogenic fibromas

A

calcifications

47
Q

Cementoblastoma most common location

A
  • Mandibular first molar
48
Q

Cementoblastoma results

A
  • Pain, expansion, root destruction
49
Q

Cementoblastoma tx and recurrence

A
  • Does not recur after complete removal, tooth extracted as well
50
Q
A

cementoblastoma

51
Q

Ameloblastic Fibroma demo/presentation

A
  • “Kiddie” tumor (Mean = 14.8 y)
  • A painless swelling of posterior mandible
52
Q

Ameloblastic Fibroma radio

A
  • Well-circumscribed lucency, frequently associated with the crowns of impacted teeth
53
Q

Ameloblastic Fibroma tx/recurrence

A
  • Treatment by enucleation and curettage. May recur
54
Q

dif dx

A

ameloblastic fibroma
dentigerous cyst
OKC
unicystic ameloblastoma
orthokeratinizing odontogenic cyst

55
Q

dif dx

A

ameloblastic fibroma
dentigerous cyst
OKC
OOC

56
Q

dif dx

A

ameloblastic fibroma
dentigerous cyst
OKC
unicystic ameloblastoma
orthokeratinizing odontogenic cyst

57
Q

dif dx

A

OKC
OOC
ameloblastic fibroma
dentigerous cyst
unicystic ameloblastoma

58
Q

Ameloblastic Fibroma histo

A
  • Ectomesenchyme resembling dental papilla, hypercellular
  • Epithelial strands and cords resembling dental lamina and enamel organ
    anastomeses may form with epithelila strands
59
Q

biopsy from the posterior man of a 14 y/o, presented as a unilocular lesion of an unerupted tooth.
diagnosis/tx?

A

ameloblastic fibroma, Treatment by enucleation. Recurrence is rare

60
Q

Ameloblastic Fibro-Odontoma
demo

A
  • A “kiddie” tumor (mean age = 8 to 12y)
61
Q

Ameloblastic Fibro-Odontoma most frequent location

A
  • Most frequent in posterior mandible
62
Q

Ameloblastic Fibro- Odontoma radio

A
  • A unilocular or multilocular mixed density lesion, often associated with the crown of an unerupted tooth
63
Q

Ameloblastic Fibro-Odontoma occurance comapred to ameloblastic fibroma

A
  • Less common than ameloblastic fibroma
64
Q

Ameloblastic Fibro-Odontoma tx/recurrence

A
  • Treatment by enucleation. Recurrence is rare
65
Q

dif dx

A

ameloblastic fibro-odontoma
calcifying odontogenic cyst
calcifying epithelial odontogenic tumor
odontogenic fibroma

66
Q

dif dx

A

ameloblastic fibro-odontoma
calcifying odontogenic cyst
calcifying epi odontogenic tumor
odontogenic fibroma

67
Q

Ameloblastic Fibro-Odontoma histo

A
  • Histologic features of ameloblastic fibroma, with the
    presence of dentin and enamel
68
Q

taken from post man as a multilocular mixed density, unerupted tooth

A

ameloblastic firbro-odontoma, dentin and enamel present

69
Q

Odontoma demo? viewed as?

A
  • Teenagers
  • Viewed an a hamartoma
70
Q

odontoma app

A
  • Well-circumscribed, dif if complex (doesnt resemble anything) or compound (resembles mini teeth)
71
Q

odontoma types and locations

A
  • Compound - anterior maxilla
  • Complex - posterior mandible
72
Q
A

compound odontoma

73
Q
A

complex odontoma

74
Q

compound odontoma histo

A

would resemble mini teeth with organized dentin and enamel

75
Q

complex odontoma histo

A

disorganized enamel and dentin

76
Q
A

complex odontoma

77
Q

what cysts are associated with odontomas

A
  • 20% of Gorlin Cysts are associated with odontomas
78
Q

Mixed Odontogenic Tumors histo compared

A

progression through odontogenesis

79
Q

swirling pattern= zellbella pattern
pseudoducts present (one row of cells instead of two)=pathognomic
calcifications may be present as well

A

Adenomatoid Odontogenic
Tumor histo

80
Q
  • Adults (Mean = 40 y)
  • Posterior mandible - molar-ramus region
A

Calcifying Epithelial Odontogenic Tumor demo and location

81
Q
  • Recurrence, but less aggressive than ameloblastoma
A

Calcifying Epithelial Odontogenic Tumor
recurrence and agression

82
Q

multilocular luceny with opacities present

A

calcifying epithelial odontogenic tumor radio

83
Q
  • A solid epithelial tumor (not cystic)
  • Pink polygonal polyhedral epithelial cells
  • Contains amyloid
  • Concentric Liesegang ring calcifications
A

Calcifying Epithelial Odontogenic Tumor structure/histo

84
Q
  • Ectomesenchymal odontogenic neoplasm
A

Odontogenic Myxoma derived from?

85
Q
  • Young adults (Mean = 30 y)
  • The mandible more commonly involved than the maxilla
A

Odontogenic Myxoma demo/location

86
Q
  • Resembles dental papilla, with stellate and spindled cells in a myxoid extracellular matrix
  • Odontogenic rests variable
A

Odontogenic Myxoma histo

87
Q
  • Most common in adult females (2 : 1) (mean age = 40 y)
A

Odontogenic Fibroma demo

88
Q
  • Well-circumscribed unilocular or multilocular lucency of anterior maxilla and posterior mandible
  • +/- radiopaque flecks
A

odontogenic fibroma radio. app

89
Q

often posterior mandible or anterior maxilla

A

odontogenic fibroma location

90
Q
  • Neoplasm
  • Young adults < 25 years
A

Cementoblastoma demo

91
Q
  • “Kiddie” tumor (Mean = 14.8 y)
  • A painless swelling of posterior mandible
A

Ameloblastic Fibroma demo/presentation

92
Q
  • Well-circumscribed lucency, frequently associated with the crowns of impacted teeth
A

Ameloblastic Fibroma radio

93
Q
  • Ectomesenchyme resembling dental papilla, hypercellular
  • Epithelial strands and cords resembling dental lamina and enamel organ
    anastomeses may form with epithelila strands
A

Ameloblastic Fibroma histo

94
Q
  • A unilocular or multilocular mixed density lesion, often associated with the crown of an unerupted tooth
A

Ameloblastic Fibro- Odontoma radio

95
Q
  • Histologic features of ameloblastic fibroma, with the
    presence of dentin and enamel
A

Ameloblastic Fibro-Odontoma histo

96
Q
  • Teenagers
  • Viewed an a hamartoma
A

Odontoma demo? viewed as?

97
Q
  • Well-circumscribed, dif if complex (doesnt resemble anything) or compound (resembles mini teeth)
A

odontoma app

98
Q

would resemble mini teeth with organized dentin and enamel

A

compound odontoma histo

99
Q

disorganized enamel and dentin

A

complex odontoma histo

PATH II (24 decks)

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