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Derm Flashcards

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1
Q

guttate psoriasis is more common in

A

teenagers

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2
Q

what type of psoriasis is a derm emergency

A

pustular

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3
Q

what does this suggest

A

Necrobiosis lipoidica- diabetes

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4
Q

What rash can resemble tinea corporis

A

granuloma annulare (a delayed hypersensitivity reaction)

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5
Q

Plus gottron’s papules on knuckles and photosensitivity rash on back and chest

A

Dermatomyositis (an idiopathic inflammatory myopathy)

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6
Q

What is adult-onset dermatomyositis associated with

A

malignancy
myopathy (myositis)

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7
Q
A

erythema nodosum

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8
Q

Papule like an insect bite forms a bulla, followed by more bullae and a golden crust

A

bullous impetigo

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9
Q

what makes perioral dermatitis worse

A

steroids

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10
Q

does eczema or psoriasis koebnerise

A

psoriasis only

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11
Q

dark and warty skin in the axillae, groin and neck is what and associated with what

A

acanthosis nigricans
stomach ca

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12
Q
A

Pyoderma gangrenosum

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13
Q

pyoderma gangrenosum is associated with what

A

IBD
RA
Myeloid blood dyscrasias
Chronic active heptatitis
Wegner granulomatosis

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14
Q

Rx for pyoderma gangrenosum as well as steroids

A

ciclosporin

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15
Q

actinic keratosis can progress to

A

SCC

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16
Q

Lesion on hand is likely to be SCC or BCC?

A

SCC- no bcc on hand

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17
Q
A

Keratoacanthoma

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18
Q

What is Bowen’s disease

A

very slow growing, can occasionally progress to SCC

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19
Q
A

xeroderma pigmentosum

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20
Q

xeroderma pigmentosum inheritance

A

autosomal recessive

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21
Q

xeroderma pigmentosum features

A

highly sensitive to sunlight

premature skin ageing

prone to skin ca

Eye problems in 80%

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22
Q
A

seborrheic dermatitis

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23
Q

Seborrhoeic dermatitis has what complications commonly

A

Otitis externa and blepharitis

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24
Q

seb. dermatitis rx

A

keratolytics e.g salicylic acid

topical antifungals eg ketoconazole

topical steroids

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25
possible SE of topical corticosteroids in patient with dark skin
hypopigmentation
26
Molluscum contagiosum with eyelid or ocular involvement and red eye requires
urgent ophthalmology review
27
Molluscum
28
Drugs that cause erythema nodosum
Penicillin COCP Sulphonamides (Painful Coloured Shins)
29
Actinic keratosis rx
topical fluorouracil
30
Initial psoriasis rx
potent corticosteroid plus vitamin D analogue (calcipotriol)
31
What drugs may trigger psoriasis exacerbation
'I need to check my psoriasis IN LAAB' Infliximab NSAIDs Lithium ACE inhibitors Antimalarials (chloroquine and hydroxychloroquine) Beta blockers
32
Guttate psoriasis is what pathogen
strep
33
SJS vs TEN vs erythema multiforme
SJS- high mucosal involvement and <10% body area TEN- >30% body EM- target lesions, acral distribution (on extremities), mucosal involvement if major
34
Shingles Mx
oral antivirals should be commenced within 72 hours of onset of symptoms (famciclovir/valacyclovir) unless the patient is < 50 years and has a 'mild' truncal rash associated with mild pain and no underlying risk factors
35
ptyriasis versicolour
36
ptyriasis versicolour rx
topical antifungal
37
blisters induced by minor trauma or friction, onset of symptoms is usually in infancy or early childhood
Epidermolysis bullosa - inherited
38
extremely itchy
dermatitis herpetiformis
39
dermatitis herpetiformis is related to what
coeliac
40
pemphigus mx
steroids
41
pemphigoid rx
topical or oral steroid tetracycline abx
42
first line for limited, localised impetigo
hydrogen peroxide 1% cream (fuscidic acid second line)
43
purple, pruritic, papular, polygonal rash on flexor surfaces. Wickham's striae over surface. Oral involvement common
Lichen planus
44
lichen sclerosis normally affects which area
genital
45
what type of vascular birth mark does not self resolve
port wine stain/naevus flammeus (assoc Sturge-Weber-Syndrome.)
46
Can BCCs be referred for routine excision
yes generally unless high risk areas (eyelid, nasal ala) - then urgent
47
1–2 weeks after a streptococcal infection of the upper respiratory tract,
guttate psoriasis
48
mildly itchy, herald patch first
ptyriasis rosea (You can observe the longitudinal diameters of the oval lesions running parallel to the line of Langer)
49
psoralen + ultraviolet A light (PUVA) therapy risks what complication
SCC
50
Only one lichen has wickham's striae- which?
planus
51
small red patch which develops in the first month of life, increasing in size until around 9 months and becoming more vascular.
capillary haemangioma (Strawberry naevi )- resolves spontaneously
52
lace like rash caused by heat exposure
erythema ab igne
53
purplish, lace-patterned discolouration of the skin
livedo reticularis
54
what is erythema chronicum migrans
the lyme disease rash
55
pyogenic granuloma
56
pyogenic granuloma
57
rx fungal nail infection
if mild- topical treatment with amorolfine 5% nail lacquer if lot of nails affected- PO terbinafine
58
drugs causing erythema multiforme
PANCaCes Penicillin Allopurinol NSAIDs Carbamazepine COCP
59
Keloid scar mx
intralesional triamcinolone
60
Acquired ichthyosis associated with what ca
Lymphoma
61
acquired hypertrichois lanuginosa associated with what ca
GI and lung
62
Dermatomyositis associated with what ca
Ovarian and lung cancer
63
Erythema gyratum repens assoc with what ca
lung
64
erythroderma assoc with what ca
lymphoma
65
Migratory thrombophlebitis assoc with what ca
pancreatic
66
Necrolytic migratory erythema assoc with what ca
glucagonoma
67
Pyoderma gangrenosum (bullous and non-bullous forms) assoc with what ca
myeloproliferative disorders
68
Sweet's syndrome assoc with what ca
haematological
69
Tylosis assoc with what ca
oesophageal
70
+ IDA
Hereditary haemorrhagic telangiectasia
71
Rose spots on abdomen
salmonella typhi infection C. psittaci infection

MSRA (21 decks)

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