Dermatology

Question 1

Distribution of eczema with age

Answer 1

Infants: face + trunk Older children: flexor + friction surfaces

Question 2

Complications of eczema

Answer 2

Infection with staph or strep Infection with HSV leading to eczema herpeticum

Question 3

Management of eczema in children

Answer 3

Emollients Corticosteroids Immunomodulators Abx with hydrocortisone

Question 4

S+S impetigo

Answer 4

Lesions of face, mouth, nose Ulcerating blister with golden crust

Question 5

Management of impetigo

Answer 5

Cetermide baths Oral flucloxacillin or topical mupirocin

Question 6

Causes of nappy rash

Answer 6

Irritant dermatitis Infantile seborrhaeic dermatitis Candida infection (usually in skin creases)

Question 7

What is Steven Johnsons + what causes it?

Answer 7

Immune complex mediated hypersensitivity disorder Usually caused by drugs: Allopurinol, carbamazepine, sulfonamides, anticonvulsants, NSAIDs

Question 8

S+S Steven Johnsons

Answer 8

URTI Mucocutaneous lesions on palms + soles Ocular symptoms - red eye, photophobia

Question 9

Causes of erythema nodosum

Answer 9

Strep infection TB IBD Lupus

Question 10

S+S erythema nodosum

Answer 10

Tender nodules on legs, shiny red lumps Fever Arthralgia Aching legs + swollen ankles

Question 11

S+S scabies

Answer 11

Severe itching, worse at night Marked in interdigital spaces

Question 12

Management of scabies

Answer 12

Malathion or permethrin

Question 13

How long does seborrhaic dermatitis last for, and what treatment is there?

Answer 13

Lasts 12 months No treatment

Question 14

Appearance of meningococcal rash

Answer 14

Non blanching purpuric or petechial rash Accompanied with pyrexia, malaise, meningitis

Question 15

Appearance of steven johnsons syndrome

Answer 15

Widespread blisters + bullae over erythematous/ haemorrhagic skin Start on face then spreads Positive Nikolsky sign

Question 16

Kawasaki disease rash

Answer 16

Polymorphous erythematous rash Strawberry tongue Erythema of palms + soles

Question 17

Appearance of nappy rash

Answer 17

Flexure sparing + buttcrack

Question 18

Appearance of erythema multiforme rash

Answer 18

Target like lesions on skin, progressing to erosions of bullae

Question 19

Appearance of measles rash

Answer 19

Maculopapular rash lasting 6-8 days Also with Koplik spots + fever/ coryza/ conjunctivitis

Question 20

Rash after treating glandular fever… with what?

Answer 20

Penicillin

Question 21

Appearance of chicken pox rash

Answer 21

Starts on head and trunk, spreads Red macules then papules then pustules

Question 22

What is contraindicated in chicken pox?

Answer 22

Aspirin due to Reye’s syndrome NSAIDs due to risk of skin infection

Question 23

Appearance of erythema nodosum rash

Answer 23

Red/ violet nodules on shins

Question 24

Appearance of molluscum contagiosum

Answer 24

Flesh coloured dome shapred papules on skin

Question 25

S+S niacin deficiency

Answer 25

Causes Pellagra - inflamed skin, diarrhoea, dementia + mouth sores

Casal’s necklace rash

Question 26

What is roseola infantum + what is it linked with?

Answer 26

Viral infection causing very high fever, associated with febrile fits

Caused by herpes virus 6