Pathophysiology

Question 1

Macule

Answer 1

Flat skin (mole, freckle)

Question 2

Papule

Answer 2

Solid, elevated 1.0cm skin lesion (wart, mole, lichen planus)

Question 3

Nodule

Answer 3

Solid, elevated 1-2cm skin lesion (lipoma, lymph node, erythema nodosum)

Question 4

Pustule

Answer 4

Elevated fluid filled skin lesion (pimple, impetigo - school sores, abscess)

Question 5

Tumor

Answer 5

Solid, uncontrolled & progressive growth of cells (neoplasm, lipoma, hemangioma)

Question 6

Plaque

Answer 6

Flat, elevated 1.0cm or greater skin lesion (psoriasis, seborrheic keratosis)

Question 7

Wheal

Answer 7

Temporary, localized skin elevation (insect bite, allergic reaction)

Question 8

Vesicle

Answer 8

Small blister that is less than 1cm (shingles -herpes zoster, chickenpox - varicella)

Question 9

Bulla

Answer 9

Large blister that is greater than 1cm in diameter

Question 10

Fissure

Answer 10

Skin cracks (athletes foot)

Question 11

Crust

Answer 11

Dried skin exudate (scab)

Question 12

Scales

Answer 12

Flakes of dry skin

Question 13

Erosion

Answer 13

Loss of the epidermis (blisters, necrosis)

Question 14

Scar

Answer 14

Skin lesion from excess collagen production (trauma, surgery)

Question 15

Atrophy

Answer 15

Loss of a portion of the skin which is a physiologic response to aging

Question 16

Ulcer

Answer 16

Skin destruction of the epidermis (decubitus ulcer, bedsore, pressure ulcer)

Question 17

Keloids

Answer 17

Irregular Shaped, elevated scars that occurs from excessive collagen in the corneum(layer) during tissue repair

Question 18

Cicatrix

Answer 18

Normal Scar that occurs with wound healing