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173 Cards in this Set

  • Front
  • Back

Orthokeratinized where?

(Thick - no nuclei)
Hard palate
Gingiva
Alveolar mucosa
Dorsal tongue

Parakeratinized

(Thick - flattening nuclei) (only keratin in the oral cavity)


Gingiva


Alveolar mucosa


Dorsal Tongue

Nonkeratinized (thick)

(thick)


Buccal Mucosa


Buccal vestibule


Labial mucosa


Labial Vestibule

Nonkeratinized (thin)

(thin)


Floor of the mouth


Ventral tongue


Lateral tongue


Soft Palate


Gingival sulcus

Hyperplasia


thickened from extra numbers of cells

Acanthosis


thickened from excess spinous layer

Pseudoepitheliomatous hyperplasia

benign, strong proliferation that looks like it’s invading, i.e. “fake cancer” appearance

Acantholysis

blister formation within epithelium, e.g. pemphigus

Dysplasia

atypical, cancer-like cells

Dyskeratosis

premature keratin formation, i.e. epithelial pearls – sing of precancerous region.

Spongiosis

degenerative shrinkage of epithelial cells, leaving open spaces between them
-- Basket-weave change (looks like side of woven basket)

Bullous

blister formation

Verruciform

long, pointed chevron-like surface projections

Hypoplasia

thinned from decreased number of cell layers

Intracellular edema

enlarged cells with clear, pale cytosol

Atrophy

thinned from decreased size of each cell

Exuberant scar tissue


May develop from pyogenic granuloma


may be pigmented (Reactive melanosis of epithelium)


Maybe: frictional keratosis



Irritation Fibroma

Most common soft tissue mass


(3rd mucosal lesion)


Irritation Fibroma

Irritation Fibroma treatment

full size 6 months


does not go away


conservative excision

Irritation Fibroma histology

pink - excessive connective tissue


Epithelium often atrophic


Grows under denture, flat,


6th most common mucosal lesion

Leaf-Shaped Fibroma

Not related to trauma, but looks like one.

Giant Cell Fibroma

Large, stellate (star shaped), subepithelial fibroblasts

Giant Cell Fibroma

Retrocuspid Papilla


location, what cells?

In children,behind MN cuspids, Same giant fibroblasts as giant cell fibroma

repeating trauma from denture flange


11th most common oral lesion

Epulis Fissuratum

papillary hyperplasia along edges


inflammatory papillary hyperplasia


pseudoepitheliomatous hyperplasia


Can look like: Squamous cell carcinoma

Epulis Fissuratum

which diseases have pseudoepitheliomatous hyperplasia


and look like squamous cell carcinoma on histo

Epulis Fissuratum


&


Inflammatory Papillary Hyperplasia

hard palate, denture, continues indefinitely, dual treatment

Inflammatory Papillary Hyperplasia

2/3 -3/4 on gingiva


Young adults


2:1 F


loose MYXOMATOUS connective tissue

Oral Focal Mucinosis

Pyogenic Granuloma location?


pus?


is it granuloma?

Gingiva (75%)


Not an infection, no pus but called “pyogenic”


Not granuloma

Lobular (locular) capillary hemangioma (another name)

Pyogenic Granuloma

When touch bleed easily, fragile

Pyogenic Granuloma

Pyogenic Granuloma


Special Variants

Pregnancy tumor - poor oral hygiene


Epulis granulomatosum - extraction socket


Parulis (gum boil) - dental fistla (can have pus)

more acute inflammatory products
Neutrophils
chronic inflammatory products
Lymphocytes

Peripheral Ossifying Fibroma, comes from where

From periodontal fibers

only in Gingival papilla

Peripheral Ossifying Fibroma

Maybe cementoid globules


Few cementoblasts


Almost no cementocytes

Peripheral Ossifying Fibroma

May show radiopacities


may spread teeth apart


may occure in edentulous

Peripheral Ossifying Fibroma

Peripheral Ossifying Fibroma treatment

Conservative surgical excision


With curettage of base 15% recurrance

Gingiva only (alveolar mucosa) in older

Peripheral Giant Cell Granuloma

Multinucleated giant cells


Extravasated erythrocytes

Peripheral Giant Cell Granuloma
Saucerization (cup out underlying bone)

Peripheral Giant Cell Granuloma

Peripheral Giant Cell Granuloma in socket called

epulis granulomatosum

Peripheral Giant Cell Granuloma if large or multiple recurring

brown tumor of hyperparathyroidism

Peripheral Giant Cell Granuloma treatment

Conservative surgical excision 10% recur

Most common soft tissue tumor in the body, but uncommon in mouth

Lipoma

Sessile, yellowish mass Very soft, encapsulated

Lipoma

Benign neoplasm of fat cells, buccal location

Lipoma

Reactive proliferation of neural tissue -- After nerve injury

Traumatic Neuroma

Mental foramen location

Traumatic Neuroma

streaming fascicles of spindle Schwann cells forming Verocay bodies (line against line)

Schwannoma

most common peripheral nerve tumor

Neurofibroma

Benign neoplasm of Schwann cells -- & perineural fibroblasts

Neurofibroma

spindle-shaped cells (C shape nuclei)

Neurofibroma

NF1 gene on chromosome 17

Neurofibromatosis

Neurofibromatosis prevelance in oral %

oral lesions 75%

Café au lait spots (2 diseases)

Neurofibromatosis &


Jaffe-Lichtenstein syndrome


McCune-Albright syndrome

Lisch nodules (brown spots on iris)

Neurofibromatosis

Neurofibromatosis, chance of malignant development

5-10% chance of malignant development

Neurofibrosarcoma, survival

5 year survival 50% malignant


preipheral nerve dysplastic spindle cells

HPV types 6 and 11

Squamous Papilloma

HPV # cause cancer and # that do not

16 and 18 cause cancer6 and 11 do not

HPV type 2, 4, 6, 40

Verruca Vulgaris

Squamous Papilloma HPV types

6 and 11

Verruca Vulgaris HPV types

2, 4, 6, 40
Verruca Vulgaris treatment
topical salicylic acid, lactic acidexcision for atypical only

Condyloma Acuminatum HPV types

HPV types 2, 6, 11, 53 & 54
HPV types 2, 6, 11, 53 & 54STD
Condyloma Acuminatum
Condyloma Acuminatum treatment

surgical NO LASER (airborn spread)

HPV 13 & 32

Multifocal Epithelial Hyperplasia; Heck’s Disease

Multifocal Epithelial Hyperplasia; Heck’s Disease
HPV 13 & 32
Heck’s Disease treatment
Spontaneous regression reportedaesthetic excision

Pox virus

Molluscum Conatgiosum

Sharing clothes, wrestlers, communal bathing

Molluscum Conatgiosum

Molluscum Conatgiosum treatment
spontaneous remission
Last on Diagnosis, older males

Warty Dyskeratoma

sun exposed. "stuck on" look

Seborrheic Keratosis

Not dependent on sun exposure


vermilion lip,


soft palate


2:1 Males

Oral Melanotic Macule

Black female, buccal, rapid increase in size

Oral Melanoacanthoma

Male 70%, older, most common oral lesion

Leukoplakia

Leukoplakia, most common location, % of oral floor dysplastic

70% vermilion border


90% of oral floor dysplastic or cancer

Leukoplakia top 3 differentials
1. Hyperkeratosis2. Dysplasia3. Squamous Cell CA
Leukoplakia treatment

1. check if wipes off


2. remove etiology


3. 2 weeks check and biopsy if left

dysplasia, histo

multinucleiation


Very large nuclei

mild dysplasia treatment

stop habitclose followup

Moderate and severe dysplasia treatment

remove remaining lesion and follow up

Red patch that cannot be clinically or pathologically diagnosed as any other condition

Erythroplakia

Almost All erythroplakias demonstrate

significant epithelial dysplasia,


carcinoma in situ,


or invasive squamous cell carcinoma

erythroplakias is ___ in 90%

severe dysplasia

erythroplakia location (3)

Floor of mouth


tongue


soft palate

Benign neoplasm of osteoblasts


Bone production

Osteoblastoma

Pain not relieved by aspirin

Osteoblastoma

Immature (woven bone)


NOT ATTACHED TO ROOT

Osteoblastoma

Osteoblastic rimming of bone


Osteoblasts scattered throughout the background fibrous stroma

Osteoblastoma

center has plexus of nerves


Osteoblastic rimming of bone (sim to osteoblastoma)


Osteoblasts scattered throughout the background fibrous stroma

osteoid osteoma

caused by cumulative UV,


10% transform to SCCA


50% white adults

Actinic Keratosis

A plaque on the skin of the face with a rough, sandpaper-like surface

Actinic Keratosis

premalignant alteration of the lower lip vermilion 10:1 Males

Actinic Cheilosis

Benign epithelial neoplasm that primarily occurs on sun-exposed skin

Keratoacanthoma

“Self Healing Cancer”

Keratoacanthoma

genodermatosis (inherited genetic skin conditions)Autosomal dominant (AD)

White Sponge Nevus & HBID

White Sponge Nevus defect in what

Defect in keratin formation -- Keratin 4 (spinous layer) -- Keratin 13 (spinous layer)

Intracellular edema Perinuclear condensation

White Sponge Nevus

White Sponge Nevus treatment

no treatment needed

Looks like Hereditary Benign Intraepithelial Dyskeratotsis (HBID

White Sponge Nevus

eye involvment - plaque

HBID; Witkop-von Sallmann Syndrome

Buccal mucosae, bilaterally

White Sponge Nevus & HBID

Autoimmune attack (T-cells) --


Against basement membrane

Lichen Planus (LP)

Association with hepatitis C

Lichen Planus (LP)
Wickham’s striae
Lichen Planus (LP)
Most common form of oral LP, bilateral

Reticular Lichen Planus (LP)

Lichen Planus (LP) treatment

erosive - topical


reduce stress


antifungal


monitor

Clinical similarity to erosive LP

Graft versus host disease (GVHD)

Ulcers are generally surrounded by patchy zones of erythema and streaky keratosis that somewhat resemble lichen planus

Chronic Ulcerative Stomatitis

Clinical similarity to ELP

Chronic Ulcerative Stomatitis

The most frequently mutated gene in human oral cancer is

the p53 tumor suppressor gene

Betel/Areca nut

greater risk of cancer

HPV SCC originating mostly in what tissue

50% originating in the oropharynx
90% of cervical cancers are related to
HPV

Oral cancer statisticsM:F%, age AA vs White

75% in males6th most common cancer in malesAfricanA middle ageWhite older age
Most likely place for oral cancer

LOWER LIP, lateral/ventral borders of the tongue, Anterior floor of the mouth, tonsillar pillars, and lateral soft palate

Squamous Cell Carcinoma (SCCA)


gender and age

M>65

Squamous Cell Carcinoma (SCCA) treatment

Wide (radical) surgical excision, radiation therapy, or a combination

Verrucous Carcinoma


gender and age


habit

M >


55


where chewing tobacco

Verrucous Carcinoma histologic changes 4 steps

hyperkeratosis -> Verrucous keratosis -> verrucous carcinoma -> squamous cell carcinoma

Snuff dipper’s cancer

Verrucous Carcinoma

Most common skin cancer, most common of all cancers

Basal Cell Carcinoma

focal ulceration, 80% head and neck, vermillion of the lip
Basal Cell Carcinoma

3rd most common cancer

Melanoma

Malignancy of melanocytes

Melanoma

ABCDE of what disease


and what is it

Melanoma


Asymmetry, Border irregularity, Color variegation, Diameter greater than 6 mm, Evolving

Central Ossifying Fibroma location

MN molar/premolar

Central Ossifying Fibroma etiology

benign neoplasm of osteoblasts or cementoblasts

Central Ossifying Fibroma capsul/rim?,


push teeth?

Encapsulated/rim yes, Unilocular, push roots aside or resorb roots

Two types of calcified tissue in Central Ossifying Fibroma

Psammomatoid type (more common), Trabecular type

Hyperparathyroidism-jaw tumor syndrome (4)

-- Parathyroid adenoma/carcinoma


-- Central ossifying fibroma


-- Renal cysts


-- Wilms’ tumor (kidney)

Juvenile Aggressive Ossifying Fibroma two types

trabecular/psammomatoid

Ewing’s Sarcoma

White young males, MN post

Metastasis to the Jaws from where

Usually from:


-- Breast


-- Prostate


-- Colon


-- Lung

3 malignant bone tumors

Osteosarcoma,


Chondrosarcoma,


Ewing sarcoma

Cell of Origin osteocyte (bone tumor)

Osteoma

Cell of Origin endothelial cell (bone tumor)

Hemangioma, Intraosseous

Cell of Origin Primitive neuroectodermal cell, (bone tumor)
Ewing sarcoma
F>>M, middle aged, third molars and retromolar areas
Focal Osteoporotic Marrow Defect

Focal Osteoporotic Marrow Defect treatment

None, unless painful

Idiopathic Osteosclerosis location

MN 1st molar/premolar

Idiopathic Osteosclerosis capsul

Not encapsulated

Idiopathic Osteosclerosis treatment

Not needed, remains indefinitely
Bone slowly “dissolves"

Massive Osteolysis (Vanishing Bone Disease)

Massive Osteolysis treatment

none is effective (ususally curettage tried)

F<30, MN anterior

Central Giant Cell Granuloma

May expand or perforate cortex, resorb roots, push teeth, thin rim

Central Giant Cell Granuloma

Central Giant Cell Granuloma treatment

Surgical curettage, Corticosteroid injections, Calcitonin injections

Brown Tumor

Hyperparathyroidism

Defective gene on chromosome 16, bilateral

Cherubism

Eosinophilic cuffing
Cherubism
Enlarges until puberty, then “burns out”
Cherubism
May develop central giant cell granuloma
Cherubism

Abnormal bone = immature, fibrosis of marrow spaces Postzygotic mutation of GNAS 1 gene Just in one bone

Fibrous Dysplasia of Bone

Ground-glass radiopacity

Fibrous Dysplasia of Bone

Fibrous Dysplasia of Bone treatment

“burns out” with adulthood, surgical recontouring

Monostotic fibrous dysplasia, differentiate from another

One bone involved -- 85% of cases

Polyostotic fibrous dysplasia, differentiate from another

Multiple bones involved -- Jaffe-Lichtenstein syndrome -- McCune-Albright syndrom

Hockey stick deformity of hip Café au lait spots Hyperthyroidism

McCune-Albright syndrome

Actually empty cavity (Hollow marrow space) M <25

Traumatic Bone Cyst

scalloped between roots (xray)

Traumatic Bone Cyst

Traumatic Bone Cyst treatment

curretage, hemorrhage, new bone 6 months
Benign neoplasm of bone

Osteoma

Multiple osteomas of flat bones (face)

Gardner Syndrome

Adenomatous intestinal polyposis


-- Risk of adenocarcinoma

Gardner Syndrome

Epidermoid cysts of skin


Desmoid tumors of skin

Gardner Syndrome

Night pain relieved by aspirin

Osteoid Osteoma