dermatology

Question 1

“stuck on” appearance

Answer 1

basal cell papilloma (seborrheic keratosis)

Question 2

picket fence pearly border

Answer 2

basal cell carcinoma

Question 3

dermatitis herpetiformis

Answer 3

coeliac disease

Question 4

erythema nodosum

Answer 4

commonly sarcoidosis, also ulcerative colitis (UC) and TB

Question 5

“erythematous bullseye lesion” (erythema migrans)

Answer 5

lyme disease

Question 6

ash leaf spots/shagreen patches

Answer 6

tuberous sclerosis

Question 7

honey coloured crust

Answer 7

impetigo (caused by staph or group A haemolytic strep)

Question 8

cafe au lait spots

Answer 8

neurofibromatosis type 1 or 2

Question 9

silver scales, extensor surfaces

Answer 9

psoriasis

Question 10

cauliflower appearance

Answer 10

plantar warts

Question 11

kaposi’s sarcoma

Answer 11

HIV, immunosuppressed (transplant)

Question 12

intense erythema on cheeks (and proximal limbs) of child

Answer 12

slapped cheek (caused by [erythrovirus] Parvovirus B19)

Question 13

small, umbilicate, translucent papule that look fluid-filled but are solid

Answer 13

molluscum contagiosum

Question 14

flaccid blisters that can be burst easily to form erythematous erosions

Answer 14

pemphigus vulgaris

Question 15

large tense bullae that are itchy and cannot be burst

Answer 15

bullous pemphigoid

Question 16

heliotrope rash and scaly knuckles

Answer 16

dermatomyositis

Question 17

fish scale skin

Answer 17

ichthyosis

Question 18

velvety thickened lesions in axillae

Answer 18

acanthosis nigricans

Question 19

target lesion

Answer 19

erythema multiforme

Question 20

ABCDE (risks for melanoma)

Answer 20

Asymmetry
Border
Colour
Diameter
Evolving/Elevation