Terminology Flashcards

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1
Q

Define macule

A

flat area of colour change
often due to pigmentary change

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2
Q

Define papule

A

solid raised lesion <0.5cm diameter

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3
Q

Define nodule

A

solid raised lesion >0.5cm diameter

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4
Q

Define plaque

A

palpable scaling raised lesion
diameter greater than height

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5
Q

Define vesicle

A

raised, clear, fluid-filled lesion <0.5cm diameter
within or beneath epidermis

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6
Q

Define bulla

A

raised, clear, fluid-filled lesion >0.5cm diameter

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7
Q

Define pustule

A

vesicle with pus

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8
Q

Define wheal

A

cutaneous oedema

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9
Q

Define lichenification

A

well-defined roughening of skin with accentuation of skin markings

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10
Q

Define erythema

A

redness that blanches on pressure

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11
Q

Define Koebner’s phenomenon

A

appearance of new skin lesions on previously unaffected skin secondary to trauma

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12
Q

Define abscess

A

localised accumulation of pus

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13
Q

Define striae

A

stretch marks

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14
Q

Define fissure

A

split in epidermis extending to dermis

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15
Q

Define generalised

A

all over body

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16
Q

Define widespread

A

extensive

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17
Q

Define localised

A

restricted to one area of body

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18
Q

Define flexural

A

body folds eg. groin, neck, antecubital fossa

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19
Q

List some extensor surfaces

A

knees, elbows, shins etc.

20
Q

List some pressure areas

A

sacrum, buttocks, ankles, heels

21
Q

Define dermatomal

A

area of skin supplied by a single spinal nerve

22
Q

Define photosensitive

A

affects sun-exposed areas eg. face, neck, back of hands

23
Q

Define discrete

A

individual lesions separate from each other

24
Q

Define confluent

A

merging together

25
Q

Define linear

A

in a line

26
Q

Define cluster

A

grouped together

27
Q

Define target

A

concentric rings (eg. erythema multiforme)

28
Q

Define annular

A

like a ring or circle

29
Q

Define discoid

A

coin-shaped

30
Q

Define serpiginous

A

like a snake

31
Q

Define reticulate

A

like a net (eg. livedo reticularis)

32
Q

Define stellate

A

star-like (eg. healing leg ulcer)

33
Q

Define purpura

A

red or purple colour which does not blanch
- petechiae (pinpoint)
- ecchymoses (bruise like patches)

34
Q

Define hypopigmentation

A

paler skin (eg. pityriasis)

35
Q

Define depigmentation

A

absence of melanin

36
Q

Define hyperpigmentation

A

darker skin (eg. melasma)

37
Q

Define patch

A

larger flat area of altered colour or texture

38
Q

Define cyst

A

circumscribed tumour
containing semi-solid or liquid material

39
Q

Define well-demarcated

A

clear border

40
Q

Define erosion and ulcer

A

erosion = loss of epidermis
ulcer = loss of epidermis and dermis

41
Q

Define excoriation

A

loss of epidermis induced by scratching

42
Q

Define scale

A

flaking from epidermis

43
Q

Define crust

A

collection of inflammatory cells and serum on the surface (eg. golden crust in impetigo)

44
Q

SCAM mnemonic for describing a lesion

A

S = size, shape
C = colour
A = associated secondary change
M = morphology, margin (border)

45
Q

Define keratotic

A

collection of dead skin cells

46
Q

ABCDE mnemonic for pigmented lesions

A

A = asymmetry
B = border (irregular)
C = colour (2 or more)
D = diameter (>6mm)
E = evolution