P3-OD-SECONDARY LESIONS

1. Erosion

2. Fissures

3. Ulcers

4.Pseudomembranous

5. Eschars

6. Desquamation

7. Crusts

LIST 7 SECONDARY LESIONS

Erosion

This type of secondary lesion is An ulceration or loss of substance produced, seen on the skin or mucous membrane

Erosion

This secondary lesion is the loss of part of the epidermis: depressed, moist, glistening, folows rupture of a vesicle or bulla

Only epidermis is lost

Which part of the skin does erosion is affected?

1. Trauma or sequalae of primary

2.secondary to vesicles & bleb

3. External: intake of acids

4. Internal cause:

gastric content

regurgitation

Cause of erosion (4)

1. Lichen planus

2.Desquamative gingivitis

give 2 types of erosion

Fissures

this secondary lesions show Cleft and grooves in the tissue that are pathologically present.

Fissure

This is linear crack or break from the epidermis to hte dermis; may be moist or dry

mucocutaneous junction of the mouth

in fissures, which part of the mouth does it occur?

true

true or false: the fissures or cracke may be inflammed

1. Angular cheilitis

2. Scrotal or fissured tongue

3. Syphilitic Rhagades

4.Congenital cleft

4 examples of fissures

1. Low Vd

2. Candida Albicans

in fissures, what is/are cause of angular cheilitis (2)

Vit. D

in fissures, what is the cause of scrotal or fissured tongue

treponema pallidum

in fissures, what is the cause of syphilitic rhagades

Metronidazole

in fissures what is the medication treatment for syphilitic rhagades

Ulcers

this secondary lesion is Defects of the skin or mucous membrane which is deeper than erosions and extends to the tissue beneath the epithelium.

edges are rugged, punch out appearance

in ulcers, the edges have what type of appearance

base is soft or indurated

in ulcers, describe the base

Floor is smooth,

granular, glazed, pus

covered or hemorrhagic.

in ulcers, describe the floor

trauma

cause of ulcers

- Sickle Cell Anemia

-Accidental toothbrushing

( s l i p p a g e ) - re p e at e d

trauma toothbrushing.

-Mouth burned by hot

liquids or toothache drops

-Ill Fitting Dentures

-Orogenital Sex- lingual

frenum affected

give 5 examples of ulcers

1. tongue

2. lips

3. mucobuccal fold

4. gingiva & palate

give 4 common sites for ulcers

• Heals w/in 10 days.

• Remove the cause.

• Application of kenalog in

orabase (hydrocortisone).

3 ways for treafment of ulcers

1. herpetic

gingivostomatitis

2.ANUG

3. RAU (Recurrent Apthous Ulcers)

in ulcers, what conditions are they seen in (3)

necrotizing agent

cause of pseudomembranous

Pseudomembranous

THis secondary lesion is when a whte memrbane is formed

Loss of surface epithelium -> plasma exudates from vessels spread to the eroded surface -> it coaglustes & encloses a necrotic epithelium

Cause of pseudomemrbaneous

1.ANUG

2.Diptheria

GIve 2 exampels of suedomemrbanous

Diptheria

wHich psuedomemrbanous lesion is an an acute infectious d i s e a s e c a u s e d b y C o r y n e b a c t e r i u m diptheria affects the nose, skin, throat.

DIptheria

WHich pseudomembranous lesion is obstruction of breathing

Eschars

This secondary lesion are Masses of dead tissues produced by burning or by corrosives.

1. Erythematous macules

2. Eschars-ulcer

3. Eschars- pseudomembrane

Give 3 differential diagosnis of eschar

Eschar

Aformoresol burn is what type of secondary lesion

Desquamations

This type of secndary lesion are Shedding of epithelial elements in scales or sheets.

scales/sheets

THis type of desquamation are results of inflammation (dry). These are lost in the oral cavity due to continuous wetting of the saliva

Crusts

This type of secondary lesiosn are Dry products of exudates occurring on skin or lips

pus,

blood, dried serum,

epithelial debris &

extreneous matter.

in crust, its composed of what (5)

amount of

pus or blood.

in crusts, the yellow to brown color depends on what?

! Mucocutaneous

junction of the lips

(angular chelitis)

! Vesicular

! Traumatic Ulcer

! Bullous

! Carcinomaa

5 common sites for crusts

pseudomembrane

If this surface is

removed (crust) it

leaves a bleeding

surface & forms a ?

1.Erosion

2.Ulcer

3.Fissure

3 examples of damagned or diminished skin surface (secondary lesions)

1.CRust

2.Scale

3.Lichenification

3 examples of augmented or increased skin surface