Common terms

Question 1

Macule

Answer 1

Flat lesion that differs in color from surrounding skin

Less than 1cm in diameter

Question 2

Papule

Answer 2

Elevated solid lesion that is generally small

Less than 5mm in diameter

Question 3

Patch

Answer 3

A small, circumscribed area differing in color from surrounding surface

Greater than 1cm in diameter (a large macule)

Question 4

Plaque

Answer 4

An elevated solid lesion greater than 5mm (large papule)

Question 5

Cyst

Answer 5

Epithelial-lined sac containing fluid or semisolid material

Question 6

Vesicle

Answer 6

Fluid-filled, very small, elevated

Less than 5mm

Question 7

Bulla

Answer 7

A large vesicle greater than 5mm

Question 8

Wheal (or hive)

Answer 8

An area of localized edema that follows vascular leakage and usually disappears within hours

Question 9

Erosion

Answer 9

Circumscribed, superficial depression resulting from the loss of some or all of the epidermis

Question 10

Layers of skin

Answer 10

Epidermis then dermal papillae then dermis then subQ tissue

SubQ tissue has VAN, hair follicle, sweat gland

Arrector pili (stands hair up), subaceous glands in dermis

Question 11

Ulcer

Answer 11

Deeper depression resulting from destruction of the epidermis and upper dermis

Question 12

Scale

Answer 12

Abnormal shedding or accumulation of stratum corneum in flakes

Question 13

Crust

Answer 13

Hardened deposit of dried serum, blood, or purulent exudates

Question 14

Lichenification

Answer 14

Thickening and hardening of the skin with accentuation of normal skin markings

Question 15

Scar

Answer 15

Healing defect of dermis (epidermis alone heals without scar)