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MSRA > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Mx seborrhoeic dermatitis scalp

A

topical 2% ketoconazole 1st line

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2
Q

which fungus causes seborrhoeic dermatitis?

A

Malassezia furfur

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3
Q

which conditions are associated with seborrhoeic dermatitis?

A

HIV
Parkinsons

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4
Q

Mx seborrhoeic dermatitis face/body

A

topical antifungal (e.g. ketoconazole)
topical steroids

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5
Q

which conditions are associated with vitiligo?

A

T1DM
Addisons
Autoimmune thyroid disorders
pernicious anaemia
alopecia areata

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6
Q

which phenomenon can vitiligo appear via trauma?

A

Koebner phenomenon

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7
Q

Mx vitiligo

A

sunblock
topical corticosteroids
+/- tacrolimus

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8
Q

where are keloid scars most common?

A

sternum

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9
Q

first line Mx urticaria

A

non sedating antihistamines e.g. loratidine/certirizine for up to 6 weeks

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10
Q

mx refractory urticaria

A

prednisolone

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11
Q

1st line Mx lichen planus

A

TO steroids

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12
Q

description of spider naevi

A

central red papule with surrounding capillaries which blanch on pressure

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13
Q

where are spider naevi almost always found?

A

upper part of body

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14
Q

which conditions are spider naevi associated with?

A

liver disease

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15
Q

what is the difference between bullous pemphigoid and pemphigus vulgaris

A

bullous pemphoigoud does not involve mucosa
pemphigus vulgaris does involve mucosa

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16
Q

1st line mx facial psoriasis

A

hydrocortisone 1% 1

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17
Q

1st line Mx rosacea with papules/pustules

A

topical ivermectin

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18
Q

features of rosacea

A

flushing (1st`)
telangiectasia
–> persistent erythema with papules + pustules
rhinophyma
blepharitis

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19
Q

which condition is dermatitis herpaiformis commonly seen in ?

A

coeliac disease

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20
Q

features of dermatitis herpetiformis

A

itchy, vesicular lesions on the extensor surfaces

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21
Q

2nd line Tx for dermatitis herpatiformis if gluten free diet has not imrpved

A

dapsone

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22
Q

Tx pityriasis versicolor

A

ketonazole shampoo

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23
Q

most common cause of tinea capitis in the UK

A

trichophyton tonsurans

24
Q

Mx tinea capitis - tonsurans causative agent

A

PO antifungals e.g. terbinafine

25
Q

Mx tinea capitis - microsporum causative agent

A

PO antifungals e.g griseofulvin

26
Q

Mx tinea corporis

A

fluconazole

27
Q

causative agent molluscum contagiasum

A

MCV - molluscum contagiasum virus

28
Q

drugs which can precipitate psoriasis

A

beta blockers
lithium
antimalarials
NSAIDs
ACEi
WITHDRAWAL of steroids

29
Q

cause of bullous pemphigoid

A

development of antibodies against henidesmosomal proteins BP180 + BP 230

30
Q

findings skin biopsy bullous pemphigoid

A

immunofluoresnce - igG and C3 at dermoepidermal junction

31
Q

Mx bullous pemphigoid

A

referral to derm who will start PO CCS

32
Q

Mx of flexural psoriasis

A

topical steroid only

33
Q

what is a curlings ulcer ?

A

stress ulcer which can occur with severe burns

34
Q

first line Tx of scalp psoriasis

A

topical potent steroids

35
Q

medical Mx of capillary haemangioma

A

propranolol

36
Q

pemphoid gestationis vs polymorphic eruption of pregnancy

A

polymorphic eruption of pregnancy - no blisters

37
Q

why refer keratocanthoma to dermatology urgently?

A

to ecxl SCC

38
Q

difference between spider naevi and telangiectasia?

A

spider naevi refill from center when pressed
telangiectasia fill from edge

39
Q

oral treatment of acne vulgaris in pregnancy?

A

oral erythromycin

40
Q

appearance livedo reticularis

A

purplish, non-blanching, reticulated rash caused by obstruction of the capillaries resulting in swollen venules.

41
Q

conditions associated with livedo reticularis

A

idiopathic (most common)
polyarteritis nodosa
systemic lupus erythematosus
cryoglobulinaemia
antiphospholipid syndrome
Ehlers-Danlos Syndrome
homocystinuria

42
Q

what is telogen effluvium

A

loss and thinning of hair due to severe stress

43
Q

Mx alopecia areata

A

topical corticosteroid + referral to derm

44
Q

underlying pathogenesis dermatitis herpetiformis

A

formation of IgA antibodies –> deposition of IgA granulation

45
Q

causes of scarring alopecia (5)

A

trauma/burns
radiotherapy
lichen planus
tinea capitis
discoid lupus

46
Q

which cancer is tylosis associated with + which body part is affected

A

oesophageal ca
palms + soles

47
Q

which type of malignancy is acquired icthyosis associated with

A

Hodgkins lymphoma

48
Q

which type of malignancy is Acquired hypertrichosis lanuginosa associated with (2)

A

GI + lung Ca

49
Q

which type of malignancy is Dermatomyositis assoc with (2)

A

ovarian and lung ca

50
Q

which type of maliganncy is Erythema gyratum repens associated with\?

A

lung ca

51
Q

which type of malignancy is Migratory thrombophlebitis associated with?

A

pancreatic ca

52
Q

which type of malignancy is Necrolytic migratory erythema associated with?

A

glucagonoma

53
Q

which type of malignancy is Pyoderma gangrenosum associated with

A

myeloproliferative disorders

54
Q

which type of malignancy is Sweet’s syndrome associated with?

A

myelodysplasia

55
Q

first line Mx hyperhidrosis

A

aluminium chloride

56
Q
A

MSRA (7 decks)

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