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MSRA > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Livedo reticularis

A

Purple lace discolouration of skin

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2
Q

Erythema ab igne

A

Red lace discolouration in exposure to heat

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3
Q

Rosacea: Mx (2)

A
  1. Topical ivermectin
  2. PO doxycycline
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4
Q

Lichen Planus: features (4)

A

Purple
Pruritic
Papular
Polygonal on flexor surface

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5
Q

Lichen Planus: Mx

A

Potent topical steroids

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6
Q

Lichen Scelrosus

A

Itchy white spots on vulva of predominantly elderly
Increased risk of vulval cancer

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7
Q

Blisters with no mucosal involvement

A

Bullous pemiphgoid

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8
Q

Blisters with mucosal involvement

A

Pemphigus vulgaris

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9
Q

Actinic keratoses: features

A

Small, crusty or scaly lesions on sun exposed skin

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10
Q

Actinic keratoses: Mx

A

Fluorouracil cream

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11
Q

Contact dermatitis: Ix

A

Skin patch

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12
Q

Capillary haemangiomas: features

A

Not present at birth
Develop rapidly and then self resolve

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13
Q

Keratocanthoma requires..

A

Urgent referral to dermatology to rule out SCC

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14
Q

Scarring alopecia: causes (5)

A
  1. trauma / burns
  2. RT
  3. Lichen planus
  4. Discoid lupus
  5. Tinea capitis
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15
Q

Non-scarring alopecia (6)

A
  1. male pattern baldness
  2. drugs (cytotoxic, carbimazole, heparin, COCP, colchicine)
  3. nutrition
  4. autoimmune - alopecia areata
  5. telegen effluvium (stress)
  6. trichotillomania
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16
Q

Spider naevi fill from….

A

Centre out

17
Q

Causes of eczema herpeticum

A

HSV 1 or 2

18
Q

Erythema multiforme: features

A

Target lesions
Hands & feet –> torso
Upper limbs > lower limbs
Pruritus

19
Q

Erythema multiforme: causes (7)

A

Viruses (HSV)
Idiopathic
Bacteria (mycoplasma, strep)
Drugs (penicillin, sulphonamides, carbamzepine, NSAIDs, COCP)
SLE
Sarcoid
Malignancy

20
Q

Erythema nodosum: features

A

Inflammation of SC fat
Tender erythematous nodular lesions on shins
Resolve within 6 weeks

21
Q

Erythema nodosum: causes (5)

A

Infection (strep, TB, brucellosis)
Systemic disease (sarcoid, IBD, Behcets)
Malignancy
Drugs (penicillin, sulphonamides, COCP)
Pregnancy

22
Q

Psoriasis: exacerbating factors (4)

A

Trauma
Alcohol
Drugs - BB, lithium, antimalarials, NSADIs, ACEi, infliximab
Withdrawal of steroids

23
Q

Pretibila myxoedema

A

Symmetrical erythematous lesions in Graves disease
Shiny orange peel skin

24
Q

Pyoderma gangrenosum

A

Small red papule –> deep red necrotric ulcer

25
Q

Necrobiosis lipoidicia diabeticrum

A

Shiny painless yellow / red skin
Diabetes

26
Q

Polymorphic eruption of pregnancy

A

Pruritic condition in last trimester
Emoillent, topical steroids & PO steroids

27
Q

Pemphigoid gestationis

A

Blistering pruritic lesions
PO steroids

MSRA (10 decks)

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