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MSRA > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Dermatomyositis

A
  • inflammatory disease of striated muscle
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2
Q

Dermatomyositis signs

A
  • heliotrope rash( red/purple rash on eyelids)
    -macular rash over the back and shoulders ( shawl sign)
    -red papules over the knuckles( gottrons papules)
    -
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3
Q

Antibodies for dermatomyositis

A

Anti-jo and anti- mi2

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4
Q

Erythema ab igne( fire)

A 
Erythema due to heat damage.
Common in elderly
Hot water bottle rash
Sitting in front of fire
- explanation and avoidance of cause. It should resolve spontaneously
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5
Q

Venous leg ulcer with squamous cell carcinoma term

A

Marjolins ulcer

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6
Q

Ulcerated / crusted lesion - which skin cancer

A

Squamous cell carcinoma

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7
Q

Slowly growing red scaly plaque not managed with psoriasis mangement

A

Bowens disease

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8
Q

Secondary rash of syphillis presentation

A

Non itchy macular rash

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9
Q

Increasing erythema over chin, nose and cheeks with overlying pustules
Management of this condition

A

1) acne rosacea

2) 0.75 % metronidazole gel

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10
Q

Tinea capitis
Who gets it
Treatment
Investigation

A

More common in pre-pubertal boys - African American children
Treatment is with oral anti- fungals
Woods lamp

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11
Q

Farmer red macular papular ring with central clearing + flu like illness

  • which rash
  • which disease
  • which organism
A
  • erythema migrants
  • Lyme disease
  • borreliosis- bacteria
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12
Q

Eczema initial mangement

A

1% hydrocortisone cream

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13
Q

Seborrhoeic dermatitis
Presentation
Causative organism
Management

A
  • red scaly rash - affects scalp, eyebrows, nasolabial folds, cheeks and flexures.- scaly patches
    associated with dandruff
    Organism- malassezia furfur
    Rx- mild corticosteroid - antifungal preparations eg : daktacort( hydrocortisone 1% + miconazole 2% cream)
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14
Q

Hair loss, nose bleeds, sore lips and Dr mucous membranes - side effect of which drug

A

Oral retinoids

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15
Q

Well defined
Red plaques
Silvery scale on elbows and knees
Extensor surfaces

A

Psoriasis

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16
Q

Allergic contact dermatitis key

A

Type 4 hypersensitivity reaction, needs to be sensitised as opposed to irritant which happens after first exposure

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17
Q

Treatment for acne rosacea ( erythema with pustules)

A

Metronidazole gel

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18
Q

Mechanism of transmission - plantar warts from one person to another

A

Indirect physical contact ( swimming pools public showers)

19
Q

trichotillomania

A
  • inadvertent hair pulling
  • increased periods of stress and anxiety
  • GI disturbances
20
Q

most common skin complaint in HIV +ve

A

Warts.

21
Q

pityriasis rosacea

A

christmas tree disease, ring of scaling with a herald patch starts on a trunk, goes on a christmas tree pattern.

22
Q

what happens to discoid lupus once it clears.

A

it leaves a hypopigmented/pigmented lesion.

23
Q

tear drop like salmon pink papules covered in a fine scale. which condition
group A beta haemolytic streptococcal URTI#
associated with lithium, NSAIDs, antimalarials

A

guttate psoriasis.

24
Q

management of acitinic keratosis

A

cryotherapy

topical 5-fluorouracil larger number of lesions

25
Q

malignancy assoicateed rashes(3)

name, description , which cancer

A
  • acanthosis nigricans
  • florid cutaneous papillomatosis- eruption of pruritic papules- very disgusting-intrabdominal malignancy
  • erythema gyratum repens- erythematous, circular, scaly lesions, associated with severe pruritis. - advances rapidly associated with TCC bladder- sybil
26
Q

paraneoplastic pemphigus

A

-polymorphic skin eruption of erythema, papules, bullae and painful mucosal erosions.
B cell lymphoma- non hodgkins- poor prognosis.

27
Q

niacin deficiency- name and triad

A
  • pellagra

- dementia, diarrhoea, dermatitis

28
Q

peeling paint syndrome

A
  • dermatitis of carcinoid syndrome
29
Q

which anti-malarial medication can cause increased photosensitivity

A

doxycycline

30
Q

keratodermablenorrhagicum

A
  • cobbletsone appearance hands/feet

- reactive arthritis manifestation

31
Q

organism that causes scabies

A

sarcoptes cabiei

32
Q

Severe itching , multiple papules on his feet and legs - continue to form a threadlike trail of red inflammation - diagnosis
Management

A

Cutaneous larva migrans hookworm ova found in cat or dog faeces

Topical bendazole

33
Q

Rash associated with glucagonoma( hyperglycaemia, weight loss ,anaemia)

A

Necrolytic migratory erythema ( red blistering rash across legs)

34
Q

Leser trelat sign

A

Explosive number of seborrhoeic keratosis lesions - sign of malignancy paraneoplastic syndrome

35
Q

management of guttate psoriasis

A

Reassurance+ topical treatment if symptomatic

36
Q

management of dermatitis herpetiformis(blistering skin disorder)

A

gluten free diet+ dapsone(antibiotic)

37
Q

erythema multiforme

A

hypersensitivity reaction triggered by infections
target lesions
initially seen on the back of hands and feet before spread to torso
caused by viruses(HSV- most common cause), mycoplasma,drugs(penicillin, sulphonamides)

38
Q

red, thickened skin on soles,crop of raised lesions

A

palmoplantar pustulosis

39
Q

smelly feet, white skin over sole bilaterally, small holes seen on surface of affected skin

A

pitted keratolysis

40
Q

telogen effluvium

A

loss and thinning of hair in response to stress

41
Q

seborrhoeic dermatitis scalp management

A

-over the counter shampoo preparations-zinc pyrithione and tar

42
Q

bullous pemphigoid

A

tense blistering lesions
very itchy
referral to dermatology

43
Q

shiny pale, yellowish brown patches on shins(with telangiectasia), associated with diabetes

A

necrobiosis lipoidica

MSRA (14 decks)

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