Dermatology Terminology

Question 1

Macule

Answer 1

Circumscribed change in skin color that is flush with the surrounding skin. Lesion is

Question 2

Patch

Answer 2

Circumscribed change in skin color that is flush with the surrounding skin. Lesion is ≥1.0 cm in diameter;
Café au lait spot
Vitiligo

Question 3

Papule

Answer 3

A solid or cystic elevation

Question 4

Nodule

Answer 4

A solid or cystic elevation >1.0 cm but

Question 5

Tumor

Answer 5

A solid or cystic elevation >2.0 cm in diameter;

Follicular cyst

Question 6

Plaque

Answer 6

An elevated lesion that is >1.0 cm in diameter;

Psoriasis

Question 7

Scale

Answer 7

Desiccated, thin plates of cornified epidermal cells that form flakes on the skin surface;
Ichthyosis

Question 8

Wheal

Answer 8

Circumscribed, flat-topped, firm elevation of skin with a well-demarcated and palpable margin;
Urticaria

Question 9

Vesicle

Answer 9

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is

Question 10

Bulla

Answer 10

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is >1 cm in diameter;
Bullous pemphigoid

Question 11

Pustule

Answer 11

A vesicle containing purulent exudate;

Folliculitis

Question 12

Atrophy

Answer 12

A depression from the surface of the skin with underlying loss of epidermal or dermal substance;
Lichen sclerosis et atrophicus

Question 13

Erosion

Answer 13

A depression from the surface of the skin with a loss of all or part of the epidermis;
Burn

Can be a secondary lesion;
Ruptured bulla

Question 14

Ulceration

Answer 14

A depression from the surface of the skin with a loss of the entire epidermis and at least some of the dermis;
Ecthyma

Question 15

Lichenification

secondary skin lesion

Answer 15

Dry, leathery thickening of the skin with exaggerated skin markings;
Chronic eczema

Question 16

Scar

secondary skin lesion

Answer 16

An elevated or depressed area of fibrosis of the dermis or subcutaneous tissue resulting from an antecedent destructive process;
Healing wound

Question 17

Fissure

secondary skin lesion

Answer 17

A deep linear split in the skin extending through the epidermis;
Traumatized eczema

Question 18

Crust

secondary skin lesion

Answer 18

Dried exudates of serum, blood, sebum, or purulent material on the surface of the skin;
Acute and/or secondarily infected eczema

Question 19

Skin chronically exposed to sunlight (face, neck, hands, arms)

Answer 19

Actinic keratosis,
basal cell carcinoma,
squamous cell carcinoma

Question 20

Central chest, shoulders, and earlobes

Answer 20

Keloids

Question 21

Extensor arms and legs, intragluteal cleft, umbilicus

Answer 21

Psoriasis

Question 22

Antecubital fossa, popliteal fossa

Answer 22

Atopic dermatitis

Question 23

Anterior surface of lower legs

Answer 23

Palpable purpura,
pretibial myxedema,
necrobiosis lipoidica diabeticorum,
erythema nodosum

Question 24

Axilla and inguinal areas

Answer 24

Hidradenitis suppurativa

Question 25

Posterior neck and back

Answer 25

Folliculitis

Question 26

Web spaces of toes and sides of feet

Answer 26

Tinea pedis

Question 27

Web spaces of fingers and wrists

Answer 27

Scabies

Question 28

Palms and soles

Answer 28

Secondary syphilis

erythema multiforme

Question 29

Clustered

Answer 29

Herpes simplex

Question 30

Grouped

Answer 30

Lichen planus

Granuloma annulare

Question 31

Linear

Answer 31

Allergic contact dermatitis

Question 32

Zosteriform

Answer 32

Herpes zoster

Question 33

Annular without scale

Answer 33

Urticaria
 
Hansen disease (leprosy)

Question 34

Annular with scale

Answer 34

Dermatophytosis

Pityriasis rosea

Question 35

Coalescing

Answer 35

Psoriasis

Drug hypersensitivity eruption Viral exanthema

Urticaria