Skin Lesions

Question 1

Macule

Answer 1

Small, flat, well-demarcated, colored

Ex. Freckle, flat mole

Question 2

Patch

Answer 2

Large, flat, irregular-border, colored
(Large macule)
Ex. Vitiligo, port-wine stains, cafe au lait

Question 3

Papule

Answer 3

Small, raised, well-demarcated, solid

Ex. Whitehead, wart, elevated mole

Question 4

Nodule

Answer 4

Large, raised, well-demarcated, firm

Larger, deeper papule

Question 5

Tumor

Answer 5

Large, raised, solid mass

Ex. Benign tumors, neoplasms

Question 6

Plaque

Answer 6

Large, raised, flat-topped, firm, rough

Ex. Psoriasis, eczema

Question 7

Vesicle

Answer 7

Small, raised, well-demarcated, translucent, serous fluid-filled
Ex. Chicken pox

Question 8

Pustule

Answer 8

Small, raised, pus-filled vesicle

Ex. Impetigo

Question 9

Bulla

Answer 9

Small, raised, translucent, fluid-filled

Ex. Blister from 2nd degree burn

Question 10

Wheal

Answer 10

Variable size, raised, irregular border, solid, reddened, transient, fluid-filled papule or plaque

Question 11

Telangiectasia

Answer 11

Dilated, superficial blood vessel

Question 12

Cyst

Answer 12

Raised, well-demarcated, dermal or subcutaneous, filled with liquid or semi-solid

Question 13

Scale

Answer 13

Thick or thin, irregular, flaky skin, dry or oily

Ex. Seborrhea capitis

Question 14

Licheniform

Answer 14

Thickened skin, rough, secondary to rubbing, itching, or irritation
Ex. Chronic dermatitis

Question 15

Keloid

Answer 15

Raised, irregular, enlarging scar caused by collagen formation

Question 16

Excoriation

Answer 16

Depressed, well-defined, hollowed out (loss of epidermis), crusted area
Ex. Abrasion, cat scratch

Question 17

Fissure

Answer 17

Depressed, linear cracks/breaks from epidermis down to dermis
Ex. Tinea pedis (Athlete’s foot)

Question 18

Erosion

Answer 18

Depressed, partial epidermal loss, moist/serous discharge

Ex. Ruptured varicella lesion

Question 19

Ulcer

Answer 19

Depressed, concave, loss of epidermis and dermis

Ex. Statis ulcer