Dermatology

Question 1

Herald lesion

Answer 1

Pitiriasis rosea

Question 2

Lichen Planus
- describe
- distribution

Answer 2

itchy, papular rash most common on the palms, soles, genitalia and flexor surfaces of arms
Polygonal shapes
White lines

Question 3

Lichen planus - management

Answer 3

Potent topical steroids
Oral steroids
Immunosuppressants

benzydamine mouthwash or spray for oral Lichen planus

Question 4

Lichen simplex - describe, Mx

Answer 4

LS chronicus - from chronic scratching/rubbing eg due to eczema
Potent topical steroids

Question 5

Livedo reticularis
- Describe
- Associated conditions

Answer 5

Net-like discolouration of venules triggered by cold

RhA, SLE, polyarteritis nodosa, TB, raynauds, polymyositis

Question 6

Acanthosis nigrans
- Associated condition

Answer 6

Obesity, DM, gastric carcinoma, Hodgkin’s lymphoma, acromegaly, cushings syndrome

Question 7

Dermatitis herpetiformis
- A/w

Answer 7

Coeliac disease

Question 8

Folliculitis Barbae
- describe
- cause
- management

Answer 8

Staph aureus infection of beard area
Treated w topical or po ABx

Question 9

Roseola
AKA
Describe
Cause

Answer 9

Exanthem subitum, sixth disease, three-day rash

Rose-coloured macular rash that appears after several days of high fever

Human herpes virus

Question 10

Fungal nail infection
- topical and systemic treatment

Answer 10

• 5% amorolfine nail lacquer 1-2x weekly -6/12 fingers 12/12 toes
• terbinafine 250mg OD 12/52 fingers, 6/12 toes

Question 11

Headlice management

Answer 11

Dimeticone, wet comb

Question 12

Co-cyprindol
- indications
- caution

Answer 12

Cyprocitone acetate + ethanylestradiol

Severe acne refractory to ABx
Moderate hirsutism

Caution - meningiomas - should be monitored (the CA)