Oral Pathology Exam 2 Oucod 2008

Front 1

squamous papilloma is associated with what virus

Back 1

HPV

Front 2

what are the common intraoral locations for a squamous papilloma

Back 2

soft palate or tongue

Front 3

what is the differential diagnosis for squamous papilloma

Back 3

verruca vulgaris, condyloma accuminatum, or squamous papilloma

Front 4

what are the virus altered epithelial clear cells with small dark, pyknotic nuclei that are sometimes seen in association with squamous papilloma

Back 4

koilocytes

Front 5

what is the tx for squamous papilloma

Back 5

surgical excision

Front 6

what is a rare potentially devastating disease of the larynx and hypopharynx associated with squamous papilloma

Back 6

laryngeal papillomatosis

Front 7

what are the two types of laryngeal papillomatosis and which is associated with possible morbidity

Back 7

juvenile onset and adult onset. juvenile onset can cause death if it obstructs the airway causing asphyxiation

Front 8

squamous papilloma is pre-malignant, spreads to other parts of the oral cavity and continuously enlarges T/F

Back 8

false: not pre-malignant, does not spread to other parts of the oral cavity, or continuously enlarge

Front 9

what is the term for the common wart

Back 9

verruca vulgaris

Front 10

verruca vulgaris typically present as: single lesions or multiple lesions?

Back 10

multiple lesions

Front 11

when orally involved where is verruca vulgaris commonly seen

Back 11

vermillion border, labial mucosa, or anterior tongue

Front 12

verruca vulgaris spreads easily via what

Back 12

autoinocculation

Front 13

what is the tx for verruca vulgaris

Back 13

surgical excision, liquid nitrogen therapy, curettage, topical keratinolytic agents

Front 14

squamous papilloma is often associated with cutaneous horns (keratin horns) T/F

Back 14

false: associated with verruca vulgaris

Front 15

is verruca vulgaris premalignant

Back 15

no

Front 16

what amount of verruca vulgaris will disappear spontaneously

Back 16

2/3

Front 17

what is the term for venereal wart? what virus is associated with this?

Back 17

condyloma accuminatum associated with HPV (16 and 18)

Front 18

what can be done to make a diagnosis for condyloma accuminatum

Back 18

antibody tests for HPV 16 and 18 (both are associated with increased risk of malignant transformation)

Front 19

condyloma accuminatum is considered an STD and is about 20% of all STDs T/F

Back 19

true

Front 20

condyloma accuminatum is associated with a virus induced proliferation of stratified squamous epithelium in what areas

Back 20

genitalia, perianal region, mouth, and larynx

Front 21

what is the tx for condyloma accuminatum

Back 21

surgical excision in oral cavity

Front 22

which is larger papilloma or condyloma accuminatum

Back 22

condyloma accuminatum and is usually clustered with other condylomata

Front 23

focal epithelial hyperplasia is associated with which strains of HPV

Back 23

13 and 32

Front 24

when stretched will focal epithelial hyperplasia disappear

Back 24

yes

Front 25

what cells are associated with focal epithelial hyperplasia

Back 25

mitosoid cells

Front 26

what is the tx for focal epithelial hyperplasia

Back 26

surgical excision in the oral cavity

Front 27

verruciform xanthoma is what

Back 27

hyperplastic condition of the epithelium of the mouth, skin, and genitalia. most cases involved oral cavity and on attached gingiva

Front 28

what foamy lipid filled histiocytes that are involved beneath the epithelium are associated with verruciform xanthoma

Back 28

xanthoma cells

Front 29

which of the following is not HPV associated: condyloma accuminatum, veruca vulgaris, verruciform xanthoma, or squamous papilloma

Back 29

verruciform xanthoma

Front 30

verruciform xanthoma is seen more often in what sex

Back 30

female (2:1)

Front 31

what is the tx for verruciform xanthoma

Back 31

conservative surgical excision

Front 32

what is the differential dx for oral melanotic macule

Back 32

melanin, vascular, or metal

Front 33

what are the ways of ruling out the differential dx for oral melanotic macule

Back 33

take an x-ray to visualize possible metal cause, palpate for blanching to determine vascular possibility. if not these then biopsy should be done to check for melanoma

Front 34

what is the term for a mole

Back 34

acquired melanocytic nevus

Front 35

nevus cells and melanocytes both come from what embryologic origin

Back 35

neural crest

Front 36

what are the stages for acquired melanocytic nevus

Back 36

1. junctional nevus, 2. compound nevus, 3. intradermal nevus,

Front 37

what is the most common type of acquired melanocytic nevus

Back 37

intradermal ( or intraoral) nevus

Front 38

why are blue nevi blue

Back 38

because of the tyndall effect (is the interaction of light within particles in a colloidal suspension

Front 39

what is the clinical term used to characterize a white patch that cant be clinically or pathologically identified as any other disease

Back 39

leukoplakia

Front 40

leukoplakia is a disease primarily of what sex and habit

Back 40

adults males and smokers

Front 41

leukoplakia should be biopsied if it is still present after how long

Back 41

2 weeks

Front 42

if leukoplakia is found in the floor of the mouth what is the change it will be squamous cell carcinoma? tongue? llip?

Back 42

floor of mouth- 40%, tongue-24%, lip-24%

Front 43

what is the histology associated with leukoplakia

Back 43

thickened keratin layer of surface epithelium (hyperkeratosis) with or without thickened spinous layer (acanthosis)

Front 44

bulbous/teardrop shaped rete ridges are associated with the histological appearance of leukoplakia T/F

Back 44

true

Front 45

what is the tx for leukoplakia

Back 45

first step is to arrive at a definite histo dx (biopsy is mandatory). luekoplakia with moderate eithelial dysplasia or worse warrants complete destruction or removal

Front 46

what is a red patch known as

Back 46

erythroplakia

Front 47

when erythroplakia does not clear what is the chances of cancer

Back 47

90-100%

Front 48

almost all true erythroplakias demonstrate what

Back 48

significant epithelial dysplasia, carcinoma in situ, or invasive squamous cell carcinoma

Front 49

what oral alterations are associated with smokeless tobacco keratosis

Back 49

1. characteristic painless loss of gingival and periodontal tissues in area of contact, 2. gingival recession, 3. more prevalent dental caries, 5. halitosis, 6. characteristic white plaque produced in direct contact with snuff

Front 50

how long does it typically take for smokeless tobacco keratosis to develop

Back 50

1-5 years

Front 51

what is the histology associated with smokeless tobacco keratosis

Back 51

squamous epithelium is hyperkeratinized and acanthotic. parakeratin chevrons may be seen as pointed projections above or within superficial epithelial layers. increased subepithelial vascularity and vessel engorgement. amorphous eosinophilic material within CT and salivary glands. epithelial dysplasia is uncommon and mild when present

Front 52

what is the most common malignancy associated with smokeless tobacco keratosis

Back 52

squamous cell carcinoma

Front 53

what is the low grade malignancy associated with smokeless tobacco keratosis

Back 53

verrucous carcinoma

Front 54

what is nicotine stomatitis

Back 54

generalized hyperkeratosis with red inflamed centers, representing ducts from salivary glands

Front 55

when can nicotine stomatitis regression be seen with cessation of irritation

Back 55

14 days

Front 56

any white lesion of the palatal mucosa that persists after 1 month of habit cessation (smoking) should be considered what

Back 56

leukoplakia

Front 57

what is the cause of nicotine stomatitis

Back 57

excessive heat irritation from pipes, hot food, reverse smoking

Front 58

what is the histology for nicotine stomatitis

Back 58

hyperkeratosis and acanthosis of palatal epithelium

Front 59

is nicotine stomatitis pre-malignant

Back 59

no

Front 60

actinic keratosis and actinic cheilosis are both associated with what common cause

Back 60

sun exposure

Front 61

what is actinic cheilosis

Back 61

sun damage to the lower lip vermillion

Front 62

what is the ideal preventive tx for actinic keratosis and actinic cheilosis

Back 62

vaseline with sunblock (chapstick with paraffin wax is not good)

Front 63

are actinic keratosis and actinic cheilosis premalignant

Back 63

yes

Front 64

what is the tx for actinic keratosis and actinic cheilosis

Back 64

destruction by cryotherapy (liquid nitrogen), 5-fluorouracil, curettage, electrodesiccation, and surgical excision

Front 65

what is the differential diagnosis for keratoacanthoma

Back 65

squamous cell carcinoma, basal cell carcinoma, and keratoacanthoma

Front 66

what is the appearance of keratoacanthoma

Back 66

on the skin (can be found intraorally rarely), resembles squamous cell carcinoma with a rolled raised border with an ulcerated center with rapid enlargement, a big central core of keratin, firm, nontender, well demarcated, sessile, and dome shaped nodule, that is not long persisting because it is self resolving

Front 67

a lesion of the lower lip that appear to be keratoacanthoma that does not self resolve is usually what? on the upper lip?

Back 67

lower lip: squamous cell carcinoma, upper lip: basal cell carcinoma

Front 68

keratoacanthoma is found on sun exposed areas 95% of the time T/F

Back 68

true

Front 69

what is the tx for keratoacanthoma

Back 69

excision of a large lesion because of scarring

Front 70

what are the causitive theories for keratoacanthoma

Back 70

1. viral (HPV-26 or 37) 2. well differentiated squamous cell that is defeated by immunity 3. sun damage

Front 71

what is the occurrence rate in order of occurrence from most to least for the following: SCC, BCC, and melanoma

Back 71

basal cell carcinoma, squamous cell carcinoma, and melanoma

Front 72

most (94%) of intraoral CA is what type

Back 72

squamous cell carcinoma

Front 73

what is the etiology for SCC

Back 73

alcohol and smoking tobacco

Front 74

what is the most common extraoral and intraoral locations for squamous cell carcinoma

Back 74

extraoral: lip intraoral: tongue

Front 75

SCC of the lower lip has a bad prognosis T/F

Back 75

false: it has a good prognosiss

Front 76

carcinoma in situe means what

Back 76

dysplasia is above basement membrane

Front 77

invasive CA means the cancer has broken through what

Back 77

the basement membrane

Front 78

what is the occurrence rate in order from greatest to least in AIDS pts for the following: SCC, kaposi's sarcoma, and lymphomas

Back 78

kaposi's sarcoma, lymphoma, SCC

Front 79

what is the tx for SCC of the lower lip

Back 79

surgery. chemo is not effective, so excision and or radiation is used

Front 80

what are the clinical presentation rates of SCC in order from greatest to least for the following locations: palate, floor of mouth, tongue, and gingiva

Back 80

tongue, floor of mouth, palate, and gingiva

Front 81

what dye is used to stain DNA and can be used on exophytic masses to stain for dysplasia

Back 81

toludine blue

Front 82

carcinomas tend to spread how? sarcomas tend to spread how?

Back 82

carcinomas spread via lymphatically. sarcomas tend to spread hematologically

Front 83

describe the measurement of differentiation for SCC

Back 83

well: 75% or more of the carcinomas are producing keratin. poor: few if any cells are producing keratin

Front 84

what is syncramous vs. metacromous

Back 84

syncomous: CA occurring simultaneously, metacromous: CA occurring at variable times

Front 85

what is verrucous carcinoma

Back 85

low grade variant of oral SCC, usually located in mandibular vestibule location, can be white, papillary, exophytic, acanthotic, parakeratin, and clefting present

Front 86

what is the prognosis for verrucous carcinoma

Back 86

good, due to lack of perforation through basement membrane

Front 87

what is the tx for verrucous carcinoma

Back 87

surgical excision without radical neck dissection or radiation therapy to a lesser extent

Front 88

why is chemo ineffective for verrucous carcinoma

Back 88

not a lot of mitotic activity

Front 89

what is the most common form of CA and skin CA

Back 89

basal cell carcinoma

Front 90

BCC usually occurs in what 1/3 of the face

Back 90

middle 1/3

Front 91

what is the appearance of BCC

Back 91

usually present as a raised rolled border with central depression and telangiectasia vessels coursing over the rolled border

Front 92

what is the tx for BCC

Back 92

surgical excision

Front 93

what is the most common cause of BCC

Back 93

sun exposure

Front 94

what is the differential diagnosis for basal cell carcinoma

Back 94

BCC, keratoacanthoma, or squamous cell carcinoma

Front 95

what type of BCC is the most common type

Back 95

nodular type which begins as a firm, painless papule that slowly enlarges and gradually develops the central depression

Front 96

what is the prognosis for BCC

Back 96

excellent (95-58% cure rate)

Front 97

what is the 3rd most common type of skin carcinoma

Back 97

melanoma

Front 98

what are the 4 types of melanoma

Back 98

1. superficial spreading 2. nodular melanoma 3. lentigo maligna melanoma 4. acral lentiginous melanoma

Front 99

what are the 2 growth phases of melanoma

Back 99

radial growth and vertical growth

Front 100

ABCD's of melanoma pg 377

Back 100

actually go look at that page.

Front 101

what is the tx for melanoma? what aren't good tx options?

Back 101

radiation and chemo are not effective. immunotherapy has been tried, but surgical excision is the only treatment

Front 102

what is the survival rate of oral melanoma

Back 102

0%

Front 103

worst prognosis for melanoma is designated as what?

Back 103

BANS (intrascapular area of back, posterior upper arms, posterior and lateral neck, and scalp

Front 104

if melanoma is disseminated at the time of diagnosis (stage 3) the tumor is usually fatal T/F

Back 104

true

Front 105

what is the differential diagnosis for ulcerative and vesiculo-bulbous lesions

Back 105

HSV, apthous stomatitis, erosive lichen planus, lupus erythematous, cicatricial pemphigoid, pemphigus vulgaris, and erythema multiform

Front 106

what are tissues that are ectodermal in origin that develop abnormally, oligodontia and malformed teeth is seen with a lack of sweat glands upon biopsy

Back 106

ectodermal dysplasia

Front 107

white sponge nevus is genetically inherited by what method

Back 107

autosomal dominant

Front 108

white sponge nevus is what

Back 108

white plaques on the tongue, buccal mucosa, and throughout the oral cavity

Front 109

hereditary hemorrhagic telangiectasia (pg 654)

Back 109

look

Front 110

what is a hereditary syndrome, that presents with perioral pigmentation and benign multiple intestinal polyposis

Back 110

peutz-jeghers syndrome

Front 111

what is the cause of lichen planus

Back 111

immunologically mediated mucocutaneous disorder

Front 112

what is a major sign for lichen planus

Back 112

wickham's striae (sun ray appearance)

Front 113

how does lichen planus appear histologically

Back 113

epithelium is hyperkeratotic and hyperplastic with elongation of rete ridges and a band of lymphocytic infiltrate with liquifactive degeneration of basal layer. saw tooth rete ridges.

Front 114

the erosive form of lichen planus can present either unilaterally or bilaterally and is associated with chronic low grade pain T/F

Back 114

true

Front 115

what is the tx for erosive form of lichen planus

Back 115

steroids

Front 116

where should a biopsy be taken for lichen planus

Back 116

at striae region

Front 117

what seems to be the trigger for lichen planus

Back 117

stress

Front 118

what are the 3 types of lichenoid rxns

Back 118

1. amalgam restorations 2. reaction reactions 3. graft vs. host disease and lupus erythematosis

Front 119

what are the 3 types of lupus erythematosus

Back 119

1. chronic/discoid 2. subacute 3. systemic

Front 120

what is the characteristic sign of lupus erythematosus

Back 120

malar rash

Front 121

what is the tx for lupus erythematosus

Back 121

immunosuppressants

Front 122

lupus is often associated with varying degrees of ulcerations, pain, erythema, and hyperkeratosis T/F

Back 122

true

Front 123

what oral complaints often are associated with lupus erythematous

Back 123

xerostomia, stomatodynia, candidiasis, dysgeusia

Front 124

what is cicatricial pemphigoid

Back 124

when antibodies to the hemidesmosomes that connect the epithelium to the basement membranes causing subepithelial blistering and sloughing of epithelium

Front 125

edentulous areas are typically affected with cicatricial pemphigoid T/F

Back 125

false: these areas are usually unaffected

Front 126

what is the test that will seperate lichen planus from pemphigoid by rubbing a spot with cotton applicator and if it hemorrhages after a couple of minutes it is a positive result

Back 126

nikolsky test

Front 127

cicatricial pemphigoid must be specifically diagnosed with what

Back 127

direct immunofluorescence

Front 128

what is the tx for cicatricial pemphigoid

Back 128

topical steroids, systemic steroids, or dapsone

Front 129

what is pemphigus vulgaris

Back 129

hemidesmosomes break down and begin to seperate with tzanck cells beginning to develop

Front 130

what are tzanck cells

Back 130

rounded up cells where the desmosomes have broken loose

Front 131

what is the tx for erythema multiforme

Back 131

systemic steroids such as prednisone

Front 132

erythema multiforme has a gradual onset T/F

Back 132

false: acute onset

Front 133

what syndrome is associated with erythema multiforme

Back 133

steven johnson syndrome

Front 134

what is the most common location of geographic tongue

Back 134

dorsal surface of tongue

Front 135

what is a pathological cavity, epithelial lined that contains fluid or semi-solid material

Back 135

cyst

Front 136

dentigerous cyst is associated with what location

Back 136

impacted/embedded (unerupted) teeth

Front 137

what is the source of the epithelium associated with a dentigerous cyst

Back 137

reduced enamel epithelium

Front 138

what is the differential diagnosis for denitigerous cyst

Back 138

OKC and ameloblastoma

Front 139

what is the tx for a dentigerous cyst

Back 139

careful enucleation of the cyst with removal of unerupted tooth

Front 140

dentigerous cyst is said to have what origin

Back 140

developmental (meaning non-inflammatory)

Front 141

dentigerous cyst will rarely transform into what

Back 141

ameloblastoma or can develop SCC in the lining. also can develop mucoepidermoide carcinoma

Front 142

what dentition is usually involved with eruption cyst

Back 142

mixed dentition

Front 143

what specific teeth are typically associated with an eruption cyst

Back 143

1st permanent molars and maxillary incisors

Front 144

eruption cyst is a soft tissue cyst that develops as a result of what

Back 144

seperation of the dental follicle from around the crown of an erupting tooth that is within the soft tissue overlying the alveolar bone

Front 145

eruption cyst is a specific sub-type of what kind of cyst

Back 145

dentigerous cyst

Front 146

surface trauma to an eruption cyst may cause a collection of blood int he cystic fluid, imparting a blue to purplish brown color known as what

Back 146

eruption hematoma

Front 147

primordial cyst is considered what now

Back 147

odontogenic keratocyst

Front 148

what are the 3 important features associated with odontogenic keratocyst

Back 148

1. very aggressive behavior 2. unique histological features 3. associated with nevoid basal cell carcinoma when many lesions occur and other symptoms are present

Front 149

most cases of odontogenic keratocyst are found in which arch

Back 149

60-80% found in mandible, especially posterior body and or ascending ramus

Front 150

what are the 4 features of the epithelial lining associated with an OKC

Back 150

1. uniform thickness (5-8 cells) 2. basal cell nuclei are hyper chromatic palisades 3. surface corrugated layer of parakeratin 4. lack rete pegs, lumen has desquamated parakeratine, and has daughter cells

Front 151

what is the differential diagnosis for OKC

Back 151

ameloblastoma, OKC, or dentigerous cyst

Front 152

diagnosis of OKC is made how

Back 152

by unique histology

Front 153

what is the tx for OKC

Back 153

enucleation and curettage

Front 154

what is the difference b/w orthokeratinized odontogenic cyst and OKC

Back 154

both are keratin filled but the lining is different (orthokeratinized). may have uniform epithelial thickness but not a prominent basal layer like OKC

Front 155

what is the tx for orthokeratinized odontogenic cyst

Back 155

enucleation with curettage

Front 156

which has greater recurrence: orthokeratinized odontogenic cyst or OKC

Back 156

OKC (30%) compared to orthokeratinized odontogenic cyst (2%)

Front 157

orthokeratinized odontogenic cyst is associated with what syndrome

Back 157

nevoid basal cell carcinoma syndrome (gorlin syndrome)

Front 158

gorlin syndrome is inherited how

Back 158

autosomal dominant

Front 159

gorlin syndrome is caused by what

Back 159

mutations in patched, a tumor supressor gene mapped to chromosome 9q22.3-q31

Front 160

what are the chief components of gorlin syndrome

Back 160

multiple basal cell carcinomas of the skin, OKCs, intracranial calcification (falx cerebri), palmar/plantar pits, enlarged head circumference, and rib and vertebral anomalies (bifid rib, spina bifida occulta, etc(

Front 161

what signs of gorlin syndrome contribute to increased cranial circumference

Back 161

facies with frontal and temporoparietal bossing

Front 162

what is seen in gorlin syndrome that relates to the eyes

Back 162

usually widely seperated with true ocular hypertelorism

Front 163

basal cell carcinoma of the skin is the major component of gorlin syndrome T/F

Back 163

true (aka nevoid basal cell carcinoma syndrome)

Front 164

what are the most constant feature of gorlin syndrome

Back 164

multiple jaw cysts (OKC) that appear at a significantly younger age than normal

Front 165

the cysts associated with gorlin syndrome demonstrate an overexpression of what

Back 165

p53 and cyclin D1 oncoproteins

Front 166

what is the tx for gorlin syndrome

Back 166

jaw cysts are treated by enucleation other anomalies are mostly not life threatening

Front 167

gingival cyst of newborn is a hard tissue cyst from the reduced enamel epithelial remnants T/F

Back 167

false: soft tissue cyst from the dental lamina remnants

Front 168

what arch is mainly involved in gingival cyst of newborn

Back 168

maxilla

Front 169

gingival cyst of newborn is found on what intraoral structure

Back 169

alveolar ridge

Front 170

gingival cyst of newborn are usually self limiting and have to be present at birth T/F

Back 170

true

Front 171

gingival cyst of the adult looks like what other gingival lesion

Back 171

mucocele but wrong location

Front 172

where is gingival cyst of the adult and lateral periodontal cyst usually found

Back 172

in buccal region around cuspid/bicuspid area (60-75%)

Front 173

gingival cyst of the adult is an inflammatory hard tissue cyst T/F

Back 173

false: developmental soft tissue cyst

Front 174

what can be done to help diagnose a gingival cyst of the adult

Back 174

take x-ray, probe sulcus, and test tooth vitality because the teeth associated with the cyst are vital with no periodontal disease

Front 175

what is the tx for gingival cyst of the adult

Back 175

surgical excision

Front 176

what is the intrabony counterpart of the gingival cyst of the adult

Back 176

lateral periodontal cyst (intraosseous location)

Front 177

what is the DD for lateral periodontal cyst

Back 177

OKC

Front 178

where do most cases of lateral periodontal cyst occur

Back 178

mandibular premolar-canine-lateral incisor area 75-80%

Front 179

can lateral periodontal cyst be diagnosed by x-ray alone

Back 179

no

Front 180

what is the tx for lateral periodontal cyst

Back 180

conservative enucleation usually without damage to the adjacent tooth

Front 181

where is calcifying odontogenic cyst usually located

Back 181

anterior jaws

Front 182

what is the tx for calcifying odontogenic cyst

Back 182

enucleation

Front 183

what are the eosinophillic altered epithelial cells that are characterized by loss of nuclei wtih preservation of basic cell outline

Back 183

ghost cells

Front 184

carinoma arising in odontogenic cysts is usually derived from what

Back 184

ameloblastomas, rarely from other odontogenic tumors, de novo, or from the epithelial lining of odontogenic cysts

Front 185

what is the tx for carcinoma arising in odontogenic cysts

Back 185

local block excision to radical resection, with or without radiation or adjunctive chemo

Front 186

carcinoma is of what origin

Back 186

epithelial

Front 187

the prefix adno designates what origin

Back 187

glandular

Front 188

sarcoma indicates what origin

Back 188

mesenchymal origin

Front 189

what is hamartoma

Back 189

limited growth potential that is normal tissue for that area (tumor like malformation)

Front 190

what is choristoma

Back 190

normal tissue growth in an abnormal location

Front 191

what are the 3 classes of odontogenic tumors

Back 191

1. tumors of odontogenic epithelium 2. mixed odontogenic tumor (epithelium and ectomesenchyme) 3. tumors of odontogenic ectomesenchyme

Front 192

what are the tumors of odontogenic epithelium

Back 192

ameloblastoma (malignant ameloblastoma or ameloblastic carcinoma), adenomatoid odontogenic tumor, and calcifying epithelial odontogenic tumor (pindborg tumor)

Front 193

what is the most common clinically significant tumor, excluding odontoma

Back 193

ameloblastoma

Front 194

what are the 3 types of ameloblastoma in order of prevalence

Back 194

multicystic (86%), unicystic (13%), peripheral (1%)

Front 195

what is the tx for ameloblastoma

Back 195

surgery

Front 196

what is the DD for ameloblastoma

Back 196

dentigerous cyst or OKC

Front 197

ameloblastoma can present with soap bubble appearance and possible root resorption T/F

Back 197

true

Front 198

where do ameloblastoma usually appear

Back 198

posterior mandible

Front 199

what are the 6 histological forms of ameloblastoma

Back 199

1. follicular pattern 2. plexiform 3. acanthomatous 4. granular cell pattern 5. desmoplastic 6. basal cell pattern

Front 200

what histological form is most common to be found in ameloblastoma

Back 200

follicular pattern

Front 201

which has higher recurrence rate in ameloblastoma: multilocular or unilocular

Back 201

multilocular (50-90%) compared to unilocular (15-20%)

Front 202

malignant ameloblastoma or ameloblastic carcinoma metastisis usually found where

Back 202

lungs

Front 203

adenomatoid odontogenic tumor represents what % of odontogenic tumors

Back 203

3-7%

Front 204

what is the differential diagnosis for adenomatoid odontogenic tumor

Back 204

dentigerous cyst

Front 205

what is seen histologically with adenomatoid odontogenic tumor

Back 205

fibrous capsule filled with a solid mass/ has ducteral structures lined with columnar cells, spindle cells, and calcifications

Front 206

pindborg tumor usually is associated with what

Back 206

embedded/impacted teeth

Front 207

what is the DD for pindborg tumor

Back 207

gorland cyst

Front 208

what is the tx for pindborg tumor

Back 208

surgery and enucleation

Front 209

neoplastic cells in pindborg tumor are thought to be of what origin

Back 209

stratum intermedium

Front 210

liesegang ring calcifications are seen in what tumor

Back 210

pindborg tumor

Front 211

what stain is used to stain ameloid for diagnosis which shows an apple-green under polarized light

Back 211

congo red

Front 212

what are the mixed odontogenic tumors

Back 212

ameloblastic fibroma, ameloblastic fibro-odontoma, and odontoma

Front 213

ameloblastic fibroma are RL lesions, associated with impacted/embedded teeth (75%) T/F

Back 213

true

Front 214

ameloblastic fibroma is usually seen in adult pts T/F

Back 214

false: peds pts

Front 215

what is the tx for ameloblastic fibroma

Back 215

surgery, extraction, or enucleation

Front 216

what is the common location in ameloblastic fibroma

Back 216

posterior mandible

Front 217

ameloblastic fibro-odontoma is seen in what pts

Back 217

peds pts

Front 218

how does ameloblastic fibro-odontoma appear radiographically

Back 218

RL/RO lesion with impacted/embedded teeth

Front 219

what is the DD for ameloblastic fibro-odontoma

Back 219

gorland cyst, calcifying epithelial odontoid tumor (pindborg tumor), odontoma

Front 220

what is the tx for ameloblastic fibro-odontoma

Back 220

tooth xct and enucleation

Front 221

where is ameloblastic fibro-odontoma usually found

Back 221

posterior mandible

Front 222

what is the most common odontogenic tumor

Back 222

odontoma

Front 223

odontoma is a neoplasm not a hamartoma T/F

Back 223

false: hamartoma not a neoplasm

Front 224

odontoma is associated with what teeth

Back 224

impacted/embedded teeth and can preven eruption of the tooth

Front 225

compound type odontoma is usually found where? complex type?

Back 225

compound: anterior maxilla, complex: posteriorly with impacted teeth

Front 226

odontoma is usually found in pedo pts T/F

Back 226

true

Front 227

what are the tumors of odontogenic ectomesenchyme

Back 227

odontogenic myxoma and cementoblastoma

Front 228

what is the DD for odontogenic myxoma

Back 228

OKC, ameloblastoma, etc(?)

Front 229

what is the CC for odontogenic myxoma

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usually assymmetry

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what is the histological appearance for odontogenic myxoma

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loose myxometous that does not stain (looks like loose areolar CT

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what is the tx for odontogenic myxoma

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surgical

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cementoblastoma is a neoplasm of cementum T/F

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true

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what teeth are usually involved for cementoblastoma

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mandibular molar teeth (50% involve the permanent 1st molar)

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what is seen radiographically in cementoblastoma

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RO, loose/obscured outline of root, and loos band/rim around lesion

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what is the tx for cementoblastoma

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surgical excision and extraction of involved teeth