Dermatology

Question 1

Psoriasis flare (extensor)

Answer 1

First line with potent topical corticosteroid and a separate topical vitamin D preperation

Question 2

Psoriasis flare (flexor)

Answer 2

First line with mild to moderate topical steroid

Question 3

New-onset purpura

Answer 3

In children all cases should be referred immediately to rule out vasculitis and meningococcal disease

Question 4

Pityriasis rosea

Answer 4

Skin infection that causes a rash and commonly resolves within 6-12 weeks

Question 5

Acne rosacea

Answer 5

• mild to moderate manged with topical metronidazole

- severe or resistant with oral tetracycline

Question 6

Dermatophyte nail infection

Answer 6

Manage with oral terbinafine

Question 7

Erythrasma

Answer 7

Bacterial infection by normal skin flora that is managed with erythromycin

Question 8

Pyoderma gangrenosum

Answer 8

Associated with IBD, RA, AML, and myeloproliferative disorders

Question 9

Atopic eruption of pregnancy

Answer 9

Most common dermatosis in pregnancy and leads to itchy, erythematous papules on the face, neck, chest and extensor surfaces

Question 10

Lichen sclerosus

Answer 10

Managed with topical steroids such as clobetasol propionate

Question 11

Vitiligo

Answer 11

Associated with other autoimmune conditions

Question 12

Pompholyx eczema

Answer 12

Precipitated by humidity and high temperatures

Question 13

Salmon patch

Answer 13

Present from birth as a blanching vascular birthmark that usually affects the neck and self resolves

Question 14

Basal cell carcinoma

Answer 14

• rolled pearly edges
• telangiectasia
• central crater

Question 15

Scabies

Answer 15

• all members of a household should be treated
• typically affects the fingers, interdigital webs and flexor aspects of the wrist
• causes delayed type IV hypersensitivity reaction
• malathion can be used for eradication therapy

Question 16

TEN

Answer 16

Rare but important side effect of with penicillin’s, anti seizure drugs and other medications

Question 17

Seborrheic dermatitis

Answer 17

Complications include blepharitis and otitis externa

Question 18

Molluscum contagiosum

Answer 18

• peads dermatology
• Koebner phenomenon with lesions occurring at injury sites
• small, raised pink papules with a central dimple

Question 19

Nodular melanoma

Answer 19

Red or black lump that oozes or bleeds, commonly linked to sun exposure

Question 20

Spider naevi

Answer 20

Small lesions with radiating blood vessels that refill from the centre and are associated with liver disease

Question 21

Acanthosis nigricans

Answer 21

Typically appear as velvety patches which affect the axilla, neck and groin

Question 22

Curlings ulcer

Answer 22

Stress ulcers in the duodenum can occur in burns patients

• commonly affects children
• vomiting
• haematemesis
• tachycardia

Question 23

Rhabdomyolysis

Answer 23

Can occur in electrical high voltage burns and need aggressive IV fluids

Question 24

Circumferential burns

Answer 24

May constrict the limb causing compartment syndrome

Question 25

Milia

Answer 25

Common finding in neonates and appear as tiny white papules often on the nose and face

Question 26

Granuloma annulare

Answer 26

A papular lesion that is slightly hyperpigmented and depressed centrally, commonly seen on the dorsal surface of the hands and feet

Question 27

Acanthosis nigricans

Answer 27

• gastric adenocarcinoma
• Cushing’s disease
• PCOS
• acromegaly