PM - 1 Flashcards

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1
Q

purple, pruritic, papular, polygonal rash on flexor surfaces of arms, palms, soles, genitalia

A

Lichen planus

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2
Q

what is Koebner phenomenon

A

new skin lesions appearing at the site of trauma

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3
Q

what condition do you see Koebner phenomenon

A

lichen planus

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4
Q

which skin condition causes white marbling/lace-like pattern in mouth

A

lichen planus

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5
Q

redness around nose and cheeks worse after drinking alcohol

A

acne rosacea

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6
Q

acne rosacea treatment

A

mild: topical metronidazole
severe: oxytetracycline

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7
Q

what is alopecia

A

localised autoimmune condition

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8
Q

alopecia treatment

A

topical corticosteroids

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9
Q

linear lesions on the side of fingers, interdigital webs and flexor aspects of the wrist

A

scabies

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10
Q

UC is associated with what skin conditions

A
  • pyoderma gangrenoum
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11
Q

bulloae with no mucosal involvement

A

Bullous pemphigoid

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12
Q

bulloae with mucosal involvement

A

pemphigus vulgaris

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13
Q

skin biopsy: immunofluorescence shows IgG and C3 at the dermoepidermal junction

A

Bullous pemphigoid

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14
Q

ullous pemphigoid treatment

A

oral corticosteroids

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15
Q

fungal hypo pigmentation of skin

A

pityriasis versicolor

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16
Q

skin condition seen in those with parkinsons and HIV

A

seborrhoea dermatitis

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17
Q

squamous cell cancer what margin required

A

4mm if lesion <20mm

6mm if >20mm

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18
Q

stuck on appearance

A

seborrhoea keratoses

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19
Q

premalignant skin lesion that develops as a consequence of chronic sun exposure

A

actinic keratoses

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20
Q

actinic keratoses treatment

A

fluorouracil cream (type of chemo)

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21
Q

rolled, pearly edges with telangiectasia surrounding a central crater

A

basal cell carcinoma

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22
Q

what is Onychomycosis

A

fungal infection of nail

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23
Q

itchy, vesicular skin lesions on the extensor surfaces

A

dermatitis herpetiformis

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24
Q

direct immunofluorescence shows deposition of IgA in a granular pattern in the upper dermis

A

dermatitis herpetiformis

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25
Q

skin condition associated with coeliacs

A

dermatitis herpetiformis

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26
Q

Dermatitis herpetiformis treatment

A

gluten free diet

27
Q

rash following sore throat (strep infection)

A

Psoriasis guttate

28
Q

symmetrical, erythematous, tender, nodules on shin

A

erythema nodosum

29
Q

erythema nodosum is associated with which medical conditions

A

sarcoid, IBD, strep

30
Q

symmetrical, erythematous lesions seen in Graves’ disease

A

Pretibial myxoedema

31
Q

vitiligo is associated with which other autoimmune conditions

A

addisions
T1DM
Graves
Pernicious anaemia

32
Q

lichen sclerosis treatment

A

topical steroids + follow up due to cancer risk

33
Q

impetigo treatment

A

topical fusidic acid is first-line

oral fluclox id extensive

34
Q

eczema distribution in infants

A

face and trunk

35
Q

thickened brown velvety patches in axilla

A

acanthosis nigricans

36
Q

what can acanthosis nigricans indicate

A

GI cancer, diabetes, obesity, PCOS, cushings

37
Q

what is calcipotriol

A

vit D analogue given in psoriasis

38
Q

smooth dome-shaped papule rapidly grows to become a crater centrally-filled with keratin

A

keratocanthoma

39
Q

what is a keratocanthoma

A

benign tumour

40
Q

keratocanthoma treatment

A

usually spontaneously regress

41
Q

bigger lumps seen in acne are called

A

comedones

42
Q

which is last resort treatment for severe acne

A

oral isotretinoin

43
Q

most common site for venous ulcers

A

medial malleolus

44
Q

neurofibromatosis or tuberous sclerosis associated with epilepsy

A

tuberous sclerosis

45
Q

cafe-au-lait spots

A

neurofibromatosis

46
Q

ash-leaf spots

A

tuberous sclerosis

47
Q

axillary/groin freckles

A

neurofibromatosis

48
Q

skin condition associated with tuberous sclerosis

A

adenoma sebaceum

49
Q

what is used to determine prognosis in melanoma

A

breslow thickness

50
Q

what is breslow thickness

A

how deep the melanoma has penetrated in mm - goes up to 4 with 4 being the worst

51
Q

what is lentigo maligna

A

melanoma in-situ

52
Q

target lesions

A

erythema multiform

53
Q

erythema multiform progression

A

initially seen on the back of the hands / feet before spreading to the torso

54
Q

what causes erythema multiform

A
  • infection, drugs, idiopathic
55
Q

most common type of skin cancer

A

basal cell

56
Q

red scaly patch on lower limb of woman

A

bowers disease

57
Q

what is Stevens-Johnson syndrome

A

severe form of erythema multiforme associated with mucosal involvement and systemic symptoms

58
Q

what does sarcoid to to calcium

A

increases it

59
Q

tear drop papules

A

guttate psoriasis

60
Q

why hyperpigmentation in addisons

A

high ACTh from pituitary and this same as melanocyte stimulating hormone

61
Q

auto antibody in dermatitis herpetiformis

A

Anti-tissue transglutaminase antibody (coeliacs)

62
Q

leukoplakia diagnosis

A

diagnosis of exclusion

63
Q

proximal muscle weakness + skin lesions

A

dermatomyositis

64
Q

how do you differentiate bowens from actinic keratosis

A

Both in sun exposed areas but bowens will be an isolated well demarcated lesion, actinic is multiple crusty, scaly lesions