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dermatology > Random Questions > Flashcards

Random Questions Flashcards

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Dermatology Board Prep flashcards
1
Q

What are the 4 common causes of drug-induced urticaria

A

Penicillin, NSAIDs, aspirin and opiates

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2
Q

What is second line treatment for eczema

A

Topical corticosteroid

1st = topical emollient

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3
Q

What nail change is seen in psoriasis

A

Nail pitting (as well as eczema and alopecia areata)
Leukonychia
Onycholysis
Subungal hyperkeratosis

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4
Q

What is the virus responsible for chickenpox

A

Varicella zoster virus (Human Herpes virus 3)

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5
Q

What virus is associated with the development of molluscum contagiosum

A

Poxvirus

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6
Q

Exacerbating and relieving factors of Psoriasis

A

Exacerbated by beta-blockers, stress

Relieved by sun exposure

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7
Q

Topical steroid potencies

‘Help every budding dermatologist’

A

Mild - hydrocortisone
Moderate - eumovate
Potent - betnovate
Very potent - Dermovate

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8
Q

What type of sensitivity reactions are pemphigous vulgaris and bulllous pemphigoid

A

Type II

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9
Q

What are the differences between bullous pemphigoid and pemphigous vulgaris

A

,

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10
Q

What are risk factors for necrotising fasciitis

A

Old age
Immunosuppression
Diabetes
Obesity
Chronic illness
Malignancy

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11
Q

What is the management of necrotising fasciitis

A

Haemodynamic support, urgent debridement surgery and broad spectrum antibiotics

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12
Q

What is shingles

A

Reactivation of the varicella zoster virus which can lie dormant in basal ganglia (on reactivation patients can feel a tingling sensation) following the primary infection

Shingles in young adults should prompt investigations into underlying immune conditions

Dermatomal distribution

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13
Q

Treatment for shingles

A

Oral antiviral - valaciclovir 1g 3D for 7 days

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14
Q

What is Nikolsky’s sign

A

A rash that peels off when pressure is applied = + sign

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15
Q

What is Steven-Johnson syndrome

A

An immune complex mediated hypersensitivity disorder

It is a dermatological emergency and in most cases can be caused by a reaction to medication or can follow viral infections

Clinical features include: ulceration of mucosa - mouth, conjunctiva, urethra, pharynx, GI tract

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16
Q

What is an established complication of oral retinoids

A

Teratogenicity

Eg isotretinoin - used for severe acne (roacutane)
Therefore it is advised that any female patients taking roacutane are on two other contraceptions one month before and one month after

17
Q

What is in indicator as to the recurrence of melanoma

A

Breslow’s thickness

18
Q

Thickened skin her partner has noted - and is unsure how long its been there. No pruritus, no bleeding or discomfort
What is the name of this rash? And what is the underlying cause ?

A

Acanthosis Nigricans due to insulin resistance

19
Q

What is acanthosis nigricans

A

Symmetrical, brown velvety plaques often found around the neck, groin and armpits

20
Q

Causes of Acanthosis nigricans

A

T2DM
GI cancer !!
Obesity

Endocrine:
Acromegaly/Cushings/hypothyroidism

Drugs: combined oral contraceptive

21
Q

1st line mxm for venous ulcer with an ABPI between 0.9-1.2

A

Compression bandaging

22
Q

What is this

A

Molluscum contagiosum

23
Q

Is treatment recommended in molluscum contagiosum ?

A

No - it is self-limiting and should resolute within 18 months
Avoid sharing towels/clothes with someone with this

Symptom control only ie itch - mild hydrocortisone

24
Q

What is Atopic eruption of pregnancy

A

Most common skin disorder found in pregnancy
Typically presents as an eczematous itchy red rash

25
Q

What is this

A

Polymorphic eruption of pregnancy

A pruritic conditions associated with the last trimester
Lesions often first appear in abdominal striae

Mxm - depends on severity, emollients, mild topical steroids, and oral steroids may be used

26
Q

Where does pemphigoid gestationis usually appear

A

In the peri-umbilical region - later spreading to trunk, back and buttocks

27
Q

What is this

A

Pityriasis versicolor - looks a lot like vitiligo

*coming back from holiday these white patches appear - circular in shape and itchy

28
Q

What is this

A

Pityriasis versicolor

White circular patches that are slightly itchy - caused by Malassezia furfur (subcutaneous fungal infection)

dermatology (8 decks)

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