Dermatology

Question 1

Types of Melanoma

Answer 1

Superficial spreading, nodular melanoma, acral lentiginous, lentigo maligna

Question 2

Superficial spreading

Answer 2

most common, A-F

Question 3

Nodular melanoma

Answer 3

Most aggressive. raised spot, grows vertically

Question 4

Acral Lentiginous

Answer 4

common in Asian/black, on palms/soles

Question 5

Lentigo Maligna

Answer 5

v slow growing, may become raised/change colours

Question 6

ACK

Answer 6

Pre-malignant (SCC), yellow-white scaly crusts

Question 7

BCC

Answer 7

commonest skin cancer. pearly nodule, telangiectasia, central ulcer

Question 8

SCC

Answer 8

Irregular, firm, ulcerated

Question 9

Bowen’s disease

Answer 9

flat plaque, can progress to SCC

Question 10

Impetigo

Answer 10

erythematous gold/honey coloured papule and macules

Question 11

Rosacea

Answer 11

red facial rash, erythema, telangiectasia, papule, pustules

Question 12

Telangiectasia vs Spider naevi

Answer 12

Spider naevi fill from the centre, telangiectasia edge

Question 13

Urticaria

Answer 13

itchy rash post drug exposure

causes - penicillin, cephalosporin, opiate, NSAIDs, ACE-I, Thiazides

Question 14

Erythoderma

Answer 14

over 90% of body surface

Question 15

Steven Johnsons syndrome

Answer 15

URT symptoms precede a severe rash, mucosal ulcerations

Question 16

Vitiligo

Answer 16

depigmented papules/macules. post sun exposure

Question 17

Seborrhoeic warts

Answer 17

brown warty lesions, v common in elderly

Question 18

Bullous Pemphigoid

Answer 18

AI, itchy blisters around flexures

rx - corticosteroids

Question 19

Chondrodermatitis nodularis helicis

Answer 19

Benign painful nodule on ear

causes - heat/cold, pressure

Question 20

Dermatitis herpertiformis

Answer 20

AI blisters on extensors

Associated with coeliac

Question 21

Eczema Herpeticum

Answer 21

sever skin infection HSV-1

children - IV aciclovir

Question 22

Erythema ab igne

Answer 22

over exposure to heat (infrared), mottled, hyperpigmetation

Question 23

Erythema Multiforme

Answer 23

Allergic reaction triggered by infection
target lesions - back of hand and feet, then torso
common cause: HSV-1, drugs

Question 24

Erythema Nodosum

Answer 24

inflammation of of SC fat
tender nodules over shins
causes - infection, systemic (sarcoidosis, IBD)

Question 25

Molluscum

Answer 25

MCV skin infection, small pinky white papule anywhere on body
self limiting

Question 26

Pellagra

Answer 26

Niacin (b3) deficiency

3Ds - dermatitis, diarrhoea, dementia

Question 27

Pityriasis versicolour

Answer 27

fungal infection, pruritis, hypopigmented patches

Question 28

Pityriasis Rosea

Answer 28

hx of recent viral infection

herald patches

Question 29

Scabies

Answer 29

scabies mote - pruritus, burrows on side of fingers, between digits, and flexor of wrist
topical permethrin (insecticide)