Pathology Exam 3 (Skin)

Question 1

Macule

Patch

Answer 1

Macule — Flat lesion < 2cm in diameter (Freckle)

Patch — > 2cm

Question 2

Papule

Nodule

Tumor

Answer 2

Papule — slightly elevated, small skin induration (< 1cm)

Nodule — larger than papule (1 - 5 cm)

Tumor — Nodule > 5cm (SCC)

Question 3

Vesicle

Bullae

Pustule

Answer 3

Vesicle — Fluid filled elevation of skin (< 1cm in diameter)

Bullae — Vesicle (> 1 cm)

Pustule — Vesicle filled w/ PUS (Impetigo)

Question 4

Epidermal defect (Syphilitic chancre)

Answer 4

Ulcer

Question 5

Skin defect covered w/ Dried blood or plasma (Healing wounds)

Answer 5

Crust

Question 6

Superficial skin defect from scratching

Answer 6

Excoriation

Question 7

Sharp-edged defect into deeper layers (Athlete’s foot)

Answer 7

Fissure

Question 8

Elevated itchy, transient lesion w/ erythema (Insect bite)

Answer 8

Wheal

Question 9

Skin flakes easily removed by scraping (Seborrheic Dermatitis)

Answer 9

Scales