Colors

Question 1

Causes of white

Answer 1

thickened epithelium (hyperkeratosis, acanthosis, dysplasia, carcinoma)
decreased vascularity (anemia)
increased collagen (submucous fibrosis - beetle juice chewing)

Question 2

Causes of red

Answer 2

thinner epithelium
increased vascularity
dissolution of collagen content of subepithelial tissue

Question 3

Causes of blue

Answer 3

venous blood collection
tyndall effect (light refraction)
medications

Question 4

Causes of black

Answer 4

melanin

heavy metal

Question 5

Causes of brown

Answer 5

melanin
hemosiderin (yellowish brown granular pigment formed from break down of Hb found in phagocytes)

Question 6

Causes of yellow

Answer 6

adipose
sebaceous material
pus (collection of necrotic material, PMNs and lymphocytes)

Question 7

Most common colors order

Answer 7

White > red > black > blue > brown > yellow

Question 8

White that rubs off

Answer 8

materia alba
white coated tongue
burn 
toothpaste/mouthwash OD
pseudomembranous candadiasis

Question 9

White that doesnt

Answer 9

leukoplakia
leukoedema
chronic cheek biting
tobacco pouch keratosis
lichen planus 
nicotine stomatitis 
linea alba
oral hairy leukoplakia

Question 10

Leukoplakia tx

Answer 10

remove frictional cause

biop after 2 weeks

Question 11

Tobacco pouch keratosis

Answer 11

smokeless tobacco pouch
snuff pouch 
spit tobacco keratosis 
white plaque with horizontal furrotws
recession and root caries possible 
dose response leading to verrucous carcinoma
reversible

Question 12

Lichen planus

Answer 12

skin lesions: purple, puritic, polygonal papules

Question 13

Lichen planus differential

Answer 13

desquamative gingivitis

Question 14

Lichen planus F/M

Answer 14

3F>2M

Question 15

Lichen planus tx

Answer 15

topical steroid

Question 16

White and red lesion

Answer 16

recurrent apthous ulcers 
geographic tongue
desquamative gingivitis 
actinic keratosis 
erythroleukoplakia

Question 17

Recurrent apthous ulcers

Answer 17

etiology: hypersensitivity, autoimmune, stress

Question 18

Recurrent apthous ulcers tx

Answer 18

steroids

Question 19

Geographic tongue

Answer 19

erythema areata migrans
benign migratory glossitis
asymptomatic but rarely sensitive to hot/spicy

Question 20

Geographic tongue location

Answer 20

dorsal tongue, rarely ventral

Question 21

Geographic tongue tx

Answer 21

none

Question 22

Desquamative gingivitis differential

Answer 22

lichen planus
mucous mem pemphigoid
pemphigus vulgaris 
systemic lupus erythematosis  
hypersensitivity

Question 23

Desquamative gingivitis tx

Answer 23

topical steroid

always biopsy

Question 24

Actinic keratosis

Answer 24

premalignant

loss of vermillion border

Question 25

Red lesions

Answer 25

``` denture stomatitis erythematous candadiasis angular chelitis lymphoid hyperplasia hemangioma hypersensitivity rxn erythroplakia lingual tonsil ```

Question 26

Brown lesions

Answer 26

``` racial pigmentation oral melanotic macule intramucosal nevus oral melanoacanthoma malignant melanoma ```

Question 27

Oral melanotic macule

Answer 27

focal melanosis oral freckle solitary, well demarcated tan to dark brown macule 1-7mm

Question 28

Oral melanotic macule F/M

Answer 28

2F>M

Question 29

Oral melanotic macule location

Answer 29

lower lip buccal mucosa gingiva

Question 30

Oral melanotic macule tx

Answer 30

none, but biop to rule out melanoma

Question 31

Intramucosal nevus

Answer 31

histologically idgential to intradermal nevus but in oral cavity

Question 32

Oral melanoacanthoma

Answer 32

``` acquired pigmentation reactive process from trauma? seen almost exclusively in african americans lesion increases rapidly in size 20-30 yrs ```

Question 33

Oral melanoacanthoma F/M

Answer 33

F>M

Question 34

Oral melanoacanthoma location

Answer 34

buccal mucosa

Question 35

Blue lesions

Answer 35

``` hemangioma blue nevus varicosities mucocele/ranula salivary duct cyst mucoepidermoid carcinoma ```

Question 36

Mucoepidermoid carcinoma

Answer 36

most common blue malignancy

Question 37

Yellow lesions

Answer 37

``` fordyce granules lymphoepithelial cyst parulis (gum boil) lipoma granular cell tumor ```

Question 38

Lipoma

Answer 38

benign fat tumor | yellowish soft nodular mass

Question 39

Lipoma locations

Answer 39

buccal mucosa tongue FOM lips

Question 40

Granular cell tumor

Answer 40

benign soft tissue tumor neoplasm that shows predialation for oral cavity asymptomatic sessile nodule <2cm african americans experience multiple tumors

Question 41

Granular cell tumor location

Answer 41

dorsal surface tongue (50%)