common skin disorders and infections

Question 1

flat lesions that are not palpable are called

Answer 1

a macule <1cm

a patch > 1cm

Question 2

a plaque is

Answer 2

a slightly raised flat lesion eg psoriasis

Question 3

papule

Answer 3

small palpable elevation <1cm

Question 4

nodule

Answer 4

palpable elevation >1cm

Question 5

vesicle

Answer 5

blister <0.5cm

Question 6

bullus

Answer 6

blister >0.5cm

Question 7

ulcer

Answer 7

full loss of epidermis

Question 8

eczema

Answer 8

pruritic inflammatory condition associated with dryness and erythema of skin. Scratching results in excoriation and lichenification

Question 9

eczema can be secondarily infected by

Answer 9

Staphylococcus aureus - yellow crust
and
herpes simplex

Question 10

management of eczema

Answer 10

avoid soap and irritants
topical steroid creams
oral antibiotics
moisturisers

Question 11

psoriasis clinical features

Answer 11

well defined plaques with silvery scales
family history
often on knees and elbows

Question 12

lichen planus

Answer 12

papules and pigmentation

unknown aetiology

Question 13

lichen planus treatment

Answer 13

ammolients 
topical steroids 
Prednisolone
azathioprine/ mycophenolate
 methotrexate