Primary and Secondary Skin Lesions Flashcards Preview

Disease & Defense - Unit 3 > Primary and Secondary Skin Lesions > Flashcards

Flashcards in Primary and Secondary Skin Lesions Deck (19):
1

Macule

Circumscribed change in skin color that is flush with the surrounding skin. Lesion is <1.0 cm in diameter. E.g. solar lentigo, traumatic purpura.

2

Patch

Circumscribed change in skin color that is flush with the surrounding skin. Lesion is ᄈ1.0 cm in diameter. E.g. Cafホ au lait spot; vitiligo.

3

Papule

A solid or cystic elevation <1.0 cm in diameter. E.g. acne; eruptive xanthoma.

4

Nodule

A solid or cystic elevation >1.0 cm but <2.0 cm in diameter. E.g. dermato-fibroma

5

Tumor

A solid or cystic elevation >2.0 cm in diameter. E.g. follicular cyst

6

Plaque

An elevated lesion that is >1.0 cm in diameter. E.g. psoriasis

7

Scale

Desiccated, thin plates of cornified epidermal cells that form flakes on the skin surface. E.g. ichthyosis

8

Wheal

Circumscribed, flat-topped, firm elevation of skin with a well-demarcated and palpable margin. E.g. urticaria

9

Vesicle

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is <1 cm in diameter. E.g. contact dermatitis; herpes simplex.

10

Bulla

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is >2 cm in diameter. E.g. bullous pemphigoid.

11

Pustule

A vesicle containing purulent exudate. E.g. folliculitis

12

Atrophy

A depression from the surface of the skin with underlying loss of epidermal or dermal substance. E.g. lichen sclerosis et atrophicus.

13

Erosion

A depression from the surface of the skin with a loss of all or part of the epidermis. E.g. burn

14

Erosion

Can be a secondary lesion. E.g. ruptured bulla

15

Ulceration

A depression from the surface of the skin with a loss of the entire epidermis and at least some of the dermis. E.g. echtyma

16

Lichenification

Secondary lesion. Dry, leathery thickening of the skin with exaggerated skin markings. E.g. chronic eczema

17

Scar

Secondary lesion. An elevated or depressed area of fibrosis of the dermis or subcutaneous tissue resulting from an antecedent destructive process. E.g. healing wound

18

Fissure

Secondary lesion. A deep linear split in the skin extending through the epidermis. E.g. traumatized eczema

19

Crust

Secondary lesion. Dried exudates of serum, blood, sebum, or purulent material on the surface of the skin. E.g. acute and/or secondarily infected eczema.