2MBChB Dermatology

Question 1

Which enzyme builds up in porphyria cutanea tarda?

Answer 1

Uroporphyrinogen decarboxylase

Question 2

Which porphyria is associated with a child with tingling/burning skin in direct sunlight?

Answer 2

Erythropoeitic protoporphyria

build up of ferrochelatase enzyme

Question 3

First line treatment for acne vulgaris?

Answer 3

Benzoyl peroxide

Question 4

First line treatment for acne rosacea?

Answer 4

Topical metronidazole

Question 5

Which enzyme builds up in acute intermittent porphyria?

Answer 5

PBG deaminase

Question 6

“stuck-on” appearance and looks like a brain

Answer 6

Basal cell papilloma

Question 7

IgA +ve and coeliac disease

Answer 7

Dermatitis herpetiformis

Question 8

Ash leaf spots, epilepsy, periungum scleroma

Answer 8

Tuberous sclerosis

Question 9

Honey-coloured crusting

Answer 9

Impetigo

Question 10

Small, umbilicated tranlucent papules that look fluid-filled but are solid

Answer 10

Molluscum contagiosum

Question 11

Heliotrope rash

Answer 11

Dermatomyositis

Question 12

Target lesions

Answer 12

Erythema multiforme

Question 13

Acanthosis nigricans

Answer 13

Addison’s disease