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Flashcards in Skin - Terms Deck (15)
1

Macule



Example?

Flat lesion, well-circumscribed color change border, under 1 cm

Freckle

2

Patch

Example?

Macule > 1 cm

Large birthmark

3

Papule


Examples? (2)

Elevated dome-shaped or flat-topped solid lesion, under 1 cm

Mole, acne

4

Plaque


Example?

Elevated flat-topped lesion > 1 cm

Psoriasis

5

Vesicle


Examples? (2)

Small fluid-filled blister under 1 cm

Chickenpox, Shingles

6

Bulla

Example?

Large fluid-filled blister > 1 cm

Pustular psoriasis

7

Wheal

Example?

Transient, itchy, elevated, erythematous smooth lesion

Hives (urticaria)

8

Acanthosis

Example?

Diffuse epidermal hyperplasia

Acanthosis nigricans

9

Dyskeratosis

Abnormal premature keratinization of cells below stratum granulosum

10

Hypergranulosis



Example?

Hyperplasia of stratum granulosum, often due to intense rubbing

Lichen planus

11

Acantholysis

Example?

Separation of epidermal cells

Pemphigus vulgaris

12

Hyperkeratosis

Example?

Hyperplasia of stratum corneum

Psoriasis

13

Parakeratosis

Example?

Hyperkeratosis w/ retention of nuclei in stratum corneum

Psoriasis

14

Spongiosis



Example?

Epidermal accumulation of edematous fluid in intercellular spaces

Eczema dermatitis

15

Onycholysis


Example?

Separation of nail plate from nail bed

Tinea pedis (athlete's foot)