Dermatology

Question 1

What is Nikolsky’s sign?

Answer 1

The appearance of blisters and erosions when the skin is rubbed gently

Question 2

What are the common drug causes of SJS?

Answer 2

penicillin
sulphonamides
lamotrigine, carbamazepine, phenytoin
allopurinol
NSAIDs
oral contraceptive pill

Question 3

What is the first-line management of TEM?

Answer 3

Supportive care - ICU
IV Immunoglobulin

Question 4

What is the first-line management for pyoderma gangrenosum?

Answer 4

Oral prednisolone

Question 5

What is a Salmon Patch?

Answer 5

A vascular birthmark - a flat vascular lesion typically affecting the nape of the neck.

Question 6

Which drugs can exacerbate plaque psoriasis?

Answer 6

Beta-blockers, lithium, antimalarials, NSAIDs and ACE inhibitors

Question 7

What is the most common effect of isoretinoin?

Answer 7

Dry skin

Question 8

What is the first-line management for Pityriasis versicolor?

Answer 8

Topical ketoconazole

Question 9

What is the characteristic presentation of Pityriasis versicolor?

Answer 9

Hypo or hyperpigmented scaly macules and patches on the trunk and proximal extremities.

Question 10

What is the first-line management for non-bullous impetigo?

Answer 10

Hydrogen peroxide cream 1%

Question 11

What topical ABx cream is indicated in bullous impetigo?

Answer 11

Topical fusidic acid/topical mupirocin

Question 12

How long should children be excluded from school for with diagnosed impetigo?

Answer 12

Until all lesions are crusted and healed OR 48 hours after commencing ABx management.

Question 13

What is onycholysis?

Answer 13

Separation of the nail from the nail bed.

Question 14

What is the first-line management of Scabies?

Answer 14

Permethrin 5% (All household and close physical contacts should be treated at the same tmie)

Question 15

What is the first common symptom for rosacea?

Answer 15

Flushing

Question 16

What is the management of moderate-to-severe rosacea (with papules or pustules)?

Answer 16

Combination of topical ivermectin and oral doxycycline

Question 17

What is the first-line management of rosacea with predominant erythema/flushing?

Answer 17

Topical brimonidine gel

Question 18

What is the NICE recommended first-line management for plaque psorasis?

Answer 18

8 weeks (Maximum) or vitamin D analogue and a potent corticosteroid

(Apply separately, one in the morning and the other in the evening).

Question 19

What virus is responsible for molluscum contagiosum?

Answer 19

Poxviridae

Question 20

What is the characteristic skin presentation of molluscum contagiosum?

Answer 20

Characteristic pinkish or pearly white papules with a central umbilication - up to 5mm in diameter.

Question 21

What is the first-line management for facial hirsutism?

Answer 21

Elfornithine (Topical)

Question 22

What is milia?

Answer 22

Small, benign, keratin-filled cysts that typically appear around the face
Most common in newborns.

Question 23

What is the first line management for Shingles?

Answer 23

Antivirals within 72 hours of presentation
Paracetamol and NSAIDs

Question 24

What type of rash is associated with guttae psoarsis?

Answer 24

Tear drop papules

Question 25

What is bullous phemigoid?

Answer 25

Autoimmune condition causing subepidermal blistering of the skin

• No mucosal involvement
  itchy tense blisters typically around the flexures

Question 26

What is a Strawberry naevus?

Answer 26

A capillary haemangioma rapidly develops in the first month of life.

Appear as erythematous raised and multilobed tumours.

Common sites include the face, scalp and back

Question 27

What are the most common causes of erythema nodosum?

Answer 27

NO – idiopathic
D – drugs (penicillin sulphonamides)
O – oral contraceptive/pregnancy
S – sarcoidosis/TB
U – ulcerative colitis/Crohn’s disease/Behçet’s disease
M – microbiology (streptococcus, mycoplasma, EBV and more)

Question 28

What specific patch is associated with pityriasis rosea?

Answer 28

Herald patch

Question 29

What causes tinea veriscolor?

Answer 29

Malassezia furfur