Secondary lesions

Question 1

Scale

Answer 1

Dried fragments of cells, irregular in shape and white, tan, yellow, or silver in color

Question 2

Crust

Answer 2

Dried serum, sebum, blood, or pus on skin surface producing a temporary barrier to the environment

Question 3

Erosion

Answer 3

A moist, demarcated, depressed area due to loss of partial or full thickness epidermis. Basal layer of epidermis remains intact (ruptured chicken pox vesicles)

Question 4

Ulcer

Answer 4

Irregularly shaped, exudative, depressed lesion in which entire dermis and all or part of dermis are lost. Results from trauma and tissue destruction (pressure ulcer)

Question 5

Scar

Answer 5

Mark left on skin after healing. Replacement of destroyed tissue by scar tissue

Question 6

Lichenification

Answer 6

Epidermal thickening resulting in elevated plaque with accentuated skin markings. Usually results from repeated injury through rubbing or scratching (atopic dermatitis)

Question 7

Excoriation

Answer 7

Superficial, linear abrasion of epidermis. Visible sign of itching caused by rubbing or scratching (atopic dermatitis)

Question 8

Fissure

Answer 8

Deep linear split through epidermis into dermis

Question 9

Atrophy

Answer 9

Wasting of epidermis in which skin appears thin and transparent, or of dermis in which there is a depressed area (arterial insufficiency)