Skin Lesions Flashcards Preview

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Flashcards in Skin Lesions Deck (40):
1

Describe purpura
Caused by

Red, may be raised, non-blanching
Caused by extravasation of blood

2

1-2mm and flat version of Purpura

Petechiae

3

Describe erythema
Caused by

Redness that blanches on P
Caused by vascular dilatation

4

Flat lesions of colour change =

<1cm macule
>1cm patch

5

Raised lesions -

<0.5cm papule
>0.5cm nodule

6

Flat and raised rash =

Maculopapullar rash

7

Describe a plaque

Raised edge and flatter surface >1cm

8

Describe a wheal

Compressible dermal swelling

9

Fluid filled skin lesions =

<0.5cm vesicle
>0.5cm bulla

10

Describe a cyst

Nodule with semi solid content

11

Skin lesion that is pus filled

Pustule

12

Define scale

Accumulation of keratin

13

Define lichenified skin

Thickened with increased skin marking caused by itching

14

Dried exudate is

Crust

15

Linear split in epidermis

Fissures

16

Atrophied skin looks like:

Shiny and tight

17

Break in epidermis = ____ dermis = _____

Epidermis - erosion
Dermis - ulcer

18

Unilateral rash is ____ until proven otherwise

Fungal infection

19

large shallow painless and around medial/lateral malleolus = ___ ulcers

venous

20

varicose veins, varicose eczema, haemosiderin pigmentation, atrophie blanche and venous flare are signs of

venous insufficiency

21

venous ulcers have a ___ base and are found in the __ region between __+__

irregular granulating
gaiter
knee and ankle

22

investigations for venous ulcers

Doppler ABPI
SA measurement
microbio swabs
patch test
biopsy

23

menagement of venous ulcers

graduated compression
debride and clean
dress
abx
topical steroid

24

refer a venous ulcer if

DM
arterial disease (ABPI <0.8)
rheumatoid ulcer
malig?
atypical distribution
resistant to topical steroids
Sx/graft needed
persistent

25

appearance of candidiasis

red, moist skin with ragged peeling edge+/- pustules/papules at margin or satellite lesions around margin

26

treatment for candidiasis

topical imidazole cream eg. clotrimazole, ketoconazole, miconazole
alternative = topical terbinafine
if itch/inflam = mild steroid cream 7-14 days
last resort = flucloxacillin 50mg/day 2-4wks

27

mild papulopustular acne rx =

benzoyl peroxide

28

Rx for acne

topical retinoids
benzoyl peroxide
tetracyclines topical
oral contraceptive/abx
topical azelaic acid
topical 10% salicylic acid

29

leg ulcer definition =

any break in skin of lower leg greater that 4 wks old

30

from common to least common leg ulcers (4)

venous
arterial
rheumatoid arthritis
diabetic

31

ulcers on foot, ABPI <1, punched out

arterial

32

pearly nodule

BCC

33

abnormal collagen bundles in dermis =

solar elastosis

34

tests to confirm rickets =

serum vit D
xray

35

wavelengths that cause photoaging of skin`

UVA and B

36

3 steps to treatment of urticaria caused by food allergy

antihistamine
oral prednisolone
IM adrenalin

37

Pellagra causes (4Ds) by vit __ deficiency

delirium, dermatitis, diarrhoea, death
B3 - niacin

38

skin condition associated with pellagra

rough red and scaly rash that may resemble sun burn
photosensitive

39

palmarplantar pustolosis is common in this group of people

smokers

40

if steroids make the rash worse may =

fungal infection