Skin Lesions

Question 1

Describe purpura

Caused by

Answer 1

Red, may be raised, non-blanching

Caused by extravasation of blood

Question 2

1-2mm and flat version of Purpura

Answer 2

Petechiae

Question 3

Describe erythema

Caused by

Answer 3

Redness that blanches on P

Caused by vascular dilatation

Question 4

Flat lesions of colour change =

Answer 4

<1cm macule

>1cm patch

Question 5

Raised lesions -

Answer 5

<0.5cm papule

>0.5cm nodule

Question 6

Flat and raised rash =

Answer 6

Maculopapullar rash

Question 7

Describe a plaque

Answer 7

Raised edge and flatter surface >1cm

Question 8

Describe a wheal

Answer 8

Compressible dermal swelling

Question 9

Fluid filled skin lesions =

Answer 9

<0.5cm vesicle

>0.5cm bulla

Question 10

Describe a cyst

Answer 10

Nodule with semi solid content

Question 11

Skin lesion that is pus filled

Answer 11

Pustule

Question 12

Define scale

Answer 12

Accumulation of keratin

Question 13

Define lichenified skin

Answer 13

Thickened with increased skin marking caused by itching

Question 14

Dried exudate is

Answer 14

Crust

Question 15

Linear split in epidermis

Answer 15

Fissures

Question 16

Atrophied skin looks like:

Answer 16

Shiny and tight

Question 17

Break in epidermis = ____ dermis = _____

Answer 17

Epidermis - erosion

Dermis - ulcer

Question 18

Unilateral rash is ____ until proven otherwise

Answer 18

Fungal infection

Question 19

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

Answer 19

venous

Question 20

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

Answer 20

venous insufficiency

Question 21

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

Answer 21

irregular granulating
gaiter
knee and ankle

Question 22

investigations for venous ulcers

Answer 22

Doppler ABPI
SA measurement
microbio swabs
patch test
biopsy

Question 23

menagement of venous ulcers

Answer 23

graduated compression
debride and clean
dress
abx
topical steroid

Question 24

refer a venous ulcer if

Answer 24

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

Question 25

appearance of candidiasis

Answer 25

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

Question 26

treatment for candidiasis

Answer 26

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

Question 27

mild papulopustular acne rx =

Answer 27

benzoyl peroxide

Question 28

Rx for acne

Answer 28

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

Question 29

leg ulcer definition =

Answer 29

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

Question 30

from common to least common leg ulcers (4)

Answer 30

venous arterial rheumatoid arthritis diabetic

Question 31

ulcers on foot, ABPI <1, punched out

Answer 31

arterial

Question 32

pearly nodule

Answer 32

BCC

Question 33

abnormal collagen bundles in dermis =

Answer 33

solar elastosis

Question 34

tests to confirm rickets =

Answer 34

serum vit D | xray

Question 35

wavelengths that cause photoaging of skin`

Answer 35

UVA and B

Question 36

3 steps to treatment of urticaria caused by food allergy

Answer 36

antihistamine oral prednisolone IM adrenalin

Question 37

Pellagra causes (4Ds) by vit __ deficiency

Answer 37

delirium, dermatitis, diarrhoea, death | B3 - niacin

Question 38

skin condition associated with pellagra

Answer 38

rough red and scaly rash that may resemble sun burn | photosensitive

Question 39

palmarplantar pustolosis is common in this group of people

Answer 39

smokers

Question 40

if steroids make the rash worse may =

Answer 40

fungal infection