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Dermatology > Terminology > Flashcards

Flashcards in Terminology Deck (49):
1

Primary lesion

Caused directly by disease process

2

Macule

Flat

3

Patch

Flat > .5 cm

4

Papule / pustule

Raised, domed,

5

Nodule

Raised, domed, > .5 cm

6

Papule

Raised, flat top,

7

Plaque

Raised, flat-top, > .5 cm

8

Vesicle

Blister (fluid filled)

9

Bulla

Blister (fluid filled) > .5 cm

10

Erosion

Denudation of epidermis only
Non-scarring

11

Ulcer

Denudation of epidermis and dermis
Scarring

12

Wheal

Edematous, transient, flat-topped plaque
Typical of urticaria (hives)
Center may appear lighter than edge

13

Secondary Features

Changes due to external factors, such as scratching, trauma, infection, or healing

14

Scale

Thickening of stratum corneum
Adherent
White / fine (typical of xerosis)
Yellow / greasy (typical of seborrheic dermatitis)
Hyperkeratotic

15

Crust

Dried endogenous material
May be serous (common in eczema), hemorrhagic, or honey-colored (impetigo)

16

Excoriation

Linear erosions from scratching

17

Lichenification

Thickening of skin w/ accentuation of skin markings (ridged surface) due to chronic scratching / rubbing

18

Fissure

Linear crack in skin

19

Petechiae

Pinpoint red-brown macules due to intradermal hemorrhage. Non-blanching.

20

Palpable Purpura

Intradermal hemorrhagic papules and plaques. Non-blanching. Bigger spots than petechiae.

21

Epidermal atrophy

"Cigarette paper" wrinkling
Red / brown color. Telangiectasias (visible blood vessels)

22

Dermal atrophy

Skin surface is depressed

23

Brown / black color due to?

Melanin or necrosis

24

Blue color due to?

Melanin deposited deeper in skin

25

Yellow color due to?

Sebaceous tissue (oil gland) or intracellular lipids

26

Annular shape

Round w/ central clearing

27

Polycystic

Plaques coalesce

28

Square eruptions or those that follow pattern of external object often due to what?

Contact dermatitis

29

Serpiginous

Wavy, snake-like border

30

Stellate

Angulated edges
May be due to scratching or condition of underlying vasculature.

31

Blaschkoid

Swirling patterns due to post-zygotic mutation of melanocytes or keratinocytes

32

Dermatomal (Zosteriform)

Linear bands that start and end at midline of trunk
Reflect nerve supply to skin
Ex: Herpes zoster (shingles)

33

Koebernization

Linear collection of lesions arising from external trauma
Common in psoriasis

34

Indurated

Firm texture upon palpation

35

Fluctuant

Compressible denoting underlying fluid or pus

36

Burrow

Wavy or linear track typical of scabies infection

37

Impetiginized

Secondarily infected w/ staph
Honey-colored crust

38

Eschar

Black, adherent crust of necrotic tissue

39

Pedunculated

Narrower at base of lesion

40

Which skin cancers are commonly translucent?

Basal cell skin cancer

41

Umbilicated

Central depression
Classic for molluscum

42

Verrucus

Rough, warty surface

43

Papulosquamous (presentation and specific diseases)

Papules and plaques w/ overlying scale
Eczema, psoriasis, contact dermatitis, seborrheic dermatitis, tinea infection, drug eruption

44

Vesiculobullous (presentation and diseases)

Vesicles and bullae
Round erosions w/ collarette of scale reflects a ruptured bulla.
Pemphigus vulgaris, bullous pemphigoid, cicatricial pemphigoid, epidermolysis bullosa, dermatitis herpetiformis, bullous impetigo, bullous tinea infection

45

Collarette

Narrow rim of loosened keratin overhanging the periphery of a circumscribed skin lesion

46

Urticarial (presentation and diseases)

Wheals
Urticaria, urticarial drug eruption, and bullous pemphigoid

47

Acneiform (presentation and diseases)

Papules and pustules w/ follicular involvement
Acnea, rosacea, perioral dermatitis, hidradenitis suppurativa, folliculitis, pyoderma faciale

48

Rosacea

Chronic skin condition characterized by facial redness, small and superficial dilated blood vessels on facial skin, papules, pustules, and swelling.

49

Ecchymosis

Subcutaneous purpura > 1 cm or a hematoma. Commonly called a bruise, but bruises are caused by trauma whereas ecchymoses, are not necessarily caused by trauma.