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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
what could be the lesion in the posterior L man?
well defined multilocular radiolucency: odontogenic myxoma odontogenic fibroma aneurysmal bone cyst ameloblastoma OKC
26
dif dx
odontogenic myxoma glandular odontogenic cyst ameloblastoma OKC
27
odontogenic tumor tx
agressive removal due to recurrence
28
Odontogenic Myxoma histo resembles? dif term? variable component?
* Resembles dental papilla, with stellate and spindled cells in a myxoid extracellular matrix * Termed myxofibroma if there is increased collagen * Odontogenic rests variable
29
which sides are what?
dental papilla on L and odonto myxoma on R
30
which sides are what?
dental papilla on L and odonto myxoma on R, myoxma may be less cellular and have more conn tissue
31
Odontogenic Fibroma types
* Central Odontogenic Fibroma: Simple type, World Health Organization (WHO) type * Peripheral Odontogenic Fibroma
32
Odontogenic Fibroma demo
* Most common in adult females (2 : 1) (mean age = 40 y)
33
odontogenic fibromas often associated with?
* One-third of cases are associated with an unerupted tooth
34
odontogenic fibroma radio. app where?
* Well-circumscribed unilocular or multilocular lucency of anterior maxilla and posterior mandible * +/- radiopaque flecks
35
odontogenic fibroma location
often posterior mandible of anterior maxilla
36
odontogenic fibroma tx
Treatment by enucleation and vigorous curettage
37
Odontogenic Fibroma histo/types
* Mature, fibrous stroma with varying amounts of inactive odontogenic epithelium * Epithelium-poor type - simple type * Epithelium-rich type - complex type (WHO-type)
38
biopsy from posterior man of adult female, well defined multilocular luceny with opaque flecks. associated with unerupted tooth. diagnosis? tx?
simple type odontogenic fibroma, treatment by enucleation and vigorous curettage
39
biopsy from 45 y/o female anterior maxilla, presented as a well-defined multilocular lucency
odontogenic fibroma, more epithelium present=complex type
40
biopsy from 40 y/o adult female anterior maxilla presented as a unilocular lucency with opaque flecks
odontogenic fibroma with calcification present
41
what causes opacity flecks with odontogenic fibromas
calcifications
42
what causes opacity flecks with odontogenic fibromas
calcifications
43
can there be peripheral odontogenic fibromas?
yes, no radio app
44
what causes opacity flecks with odontogenic fibromas
calcifications
45
Cementoblastoma demo
* Neoplasm * Young adults < 25 years
46
what causes opacity flecks with odontogenic fibromas
calcifications
47
Cementoblastoma most common location
* Mandibular first molar
48
Cementoblastoma results
* Pain, expansion, root destruction
49
Cementoblastoma tx and recurrence
* Does not recur after complete removal, tooth extracted as well
50
cementoblastoma
51
Ameloblastic Fibroma demo/presentation
* “Kiddie” tumor (Mean = 14.8 y) * A painless swelling of posterior mandible
52
Ameloblastic Fibroma radio
* Well-circumscribed lucency, frequently associated with the crowns of impacted teeth
53
Ameloblastic Fibroma tx/recurrence
* Treatment by enucleation and curettage. May recur
54
dif dx
ameloblastic fibroma dentigerous cyst OKC unicystic ameloblastoma orthokeratinizing odontogenic cyst
55
dif dx
ameloblastic fibroma dentigerous cyst OKC OOC
56
dif dx
ameloblastic fibroma dentigerous cyst OKC unicystic ameloblastoma orthokeratinizing odontogenic cyst
57
dif dx
OKC OOC ameloblastic fibroma dentigerous cyst unicystic ameloblastoma
58
Ameloblastic Fibroma histo
* Ectomesenchyme resembling dental papilla, hypercellular * Epithelial strands and cords resembling dental lamina and enamel organ anastomeses may form with epithelila strands
59
biopsy from the posterior man of a 14 y/o, presented as a unilocular lesion of an unerupted tooth. diagnosis/tx?
ameloblastic fibroma, Treatment by enucleation. Recurrence is rare
60
Ameloblastic Fibro-Odontoma demo
* A “kiddie” tumor (mean age = 8 to 12y)
61
Ameloblastic Fibro-Odontoma most frequent location
* Most frequent in posterior mandible
62
Ameloblastic Fibro- Odontoma radio
* A unilocular or multilocular mixed density lesion, often associated with the crown of an unerupted tooth
63
Ameloblastic Fibro-Odontoma occurance comapred to ameloblastic fibroma
* Less common than ameloblastic fibroma
64
Ameloblastic Fibro-Odontoma tx/recurrence
* Treatment by enucleation. Recurrence is rare
65
dif dx
ameloblastic fibro-odontoma calcifying odontogenic cyst calcifying epithelial odontogenic tumor odontogenic fibroma
66
dif dx
ameloblastic fibro-odontoma calcifying odontogenic cyst calcifying epi odontogenic tumor odontogenic fibroma
67
Ameloblastic Fibro-Odontoma histo
* Histologic features of ameloblastic fibroma, with the presence of dentin and enamel
68
taken from post man as a multilocular mixed density, unerupted tooth
ameloblastic firbro-odontoma, dentin and enamel present
69
Odontoma demo? viewed as?
* Teenagers * Viewed an a hamartoma
70
odontoma app
* Well-circumscribed, dif if complex (doesnt resemble anything) or compound (resembles mini teeth)
71
odontoma types and locations
* Compound - anterior maxilla * Complex - posterior mandible
72
compound odontoma
73
complex odontoma
74
compound odontoma histo
would resemble mini teeth with organized dentin and enamel
75
complex odontoma histo
disorganized enamel and dentin
76
complex odontoma
77
what cysts are associated with odontomas
* 20% of Gorlin Cysts are associated with odontomas
78
Mixed Odontogenic Tumors histo compared
progression through odontogenesis
79
swirling pattern= zellbella pattern pseudoducts present (one row of cells instead of two)=pathognomic calcifications may be present as well
Adenomatoid Odontogenic Tumor histo
80
* Adults (Mean = 40 y) * Posterior mandible - molar-ramus region
Calcifying Epithelial Odontogenic Tumor demo and location
81
* Recurrence, but less aggressive than ameloblastoma
Calcifying Epithelial Odontogenic Tumor recurrence and agression
82
multilocular luceny with opacities present
calcifying epithelial odontogenic tumor radio
83
* A solid epithelial tumor (not cystic) * Pink polygonal polyhedral epithelial cells * Contains amyloid * Concentric Liesegang ring calcifications
Calcifying Epithelial Odontogenic Tumor structure/histo
84
* Ectomesenchymal odontogenic neoplasm
Odontogenic Myxoma derived from?
85
* Young adults (Mean = 30 y) * The mandible more commonly involved than the maxilla
Odontogenic Myxoma demo/location
86
* Resembles dental papilla, with stellate and spindled cells in a myxoid extracellular matrix * Odontogenic rests variable
Odontogenic Myxoma histo
87
* Most common in adult females (2 : 1) (mean age = 40 y)
Odontogenic Fibroma demo
88
* Well-circumscribed unilocular or multilocular lucency of anterior maxilla and posterior mandible * +/- radiopaque flecks
odontogenic fibroma radio. app
89
often posterior mandible or anterior maxilla
odontogenic fibroma location
90
* Neoplasm * Young adults < 25 years
Cementoblastoma demo
91
* “Kiddie” tumor (Mean = 14.8 y) * A painless swelling of posterior mandible
Ameloblastic Fibroma demo/presentation
92
* Well-circumscribed lucency, frequently associated with the crowns of impacted teeth
Ameloblastic Fibroma radio
93
* Ectomesenchyme resembling dental papilla, hypercellular * Epithelial strands and cords resembling dental lamina and enamel organ anastomeses may form with epithelila strands
Ameloblastic Fibroma histo
94
* A unilocular or multilocular mixed density lesion, often associated with the crown of an unerupted tooth
Ameloblastic Fibro- Odontoma radio
95
* Histologic features of ameloblastic fibroma, with the presence of dentin and enamel
Ameloblastic Fibro-Odontoma histo
96
* Teenagers * Viewed an a hamartoma
Odontoma demo? viewed as?
97
* Well-circumscribed, dif if complex (doesnt resemble anything) or compound (resembles mini teeth)
odontoma app
98
would resemble mini teeth with organized dentin and enamel
compound odontoma histo
99
disorganized enamel and dentin
complex odontoma histo

PATH II (32 decks)

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