Dermatology

Question 1

orange peep lesions on shin

Answer 1

pretibial myxoedema

Question 2

main advers affect of PUCA therapy for psoriasis

Answer 2

squamous cell skin cancer

Question 3

difference between pemphigoid and pemphigus

Answer 3

pemphigoid - deeper, blister dont burst as much, no mucosal involvment

Question 4

topical treamtnent for facial hisuitims

Answer 4

Topical eflornithine

Question 5

pellagra

Answer 5

niacin (B3) deficinecy

Question 6

vitamin deficiency associated with TPN

Answer 6

zinc

Question 7

what virus causes pityrisysi rosacea

Answer 7

HHv7

Question 8

what might acutely worsen psoriasis

Answer 8

trauma
alcohol
drugs: beta blockers, lithium, antimalarials (chloroquine and hydroxychloroquine), NSAIDs and ACE inhibitors, infliximab
withdrawal of systemic steroids

Question 9

treatment of rosacea

Answer 9

mild - topical metronidazole

severe - oral tetreacycline

Question 10

what acne antibiotic can cause skin hyperpigmentation

Answer 10

minocylcine

Question 11

give causes of onchyolysis

Answer 11

idiopathic
trauma e.g. Excessive manicuring
infection: especially fungal
skin disease: psoriasis, dermatitis
impaired peripheral circulation e.g. Raynaud’s
systemic disease: hyper- and hypothyroidism

Question 12

what is the treatment of keloid scars

Answer 12

early keloids may be treated with intra-lesional steroids e.g. triamcinolone