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MSK > Dermatology - Acne + pustules > Flashcards

Dermatology - Acne + pustules Flashcards

1
Q
A

Acne vulgaris

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2
Q

What is the pathology behind acne?

A

Blockage of ducts + inflammation + hormones

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3
Q
A

Acne

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4
Q

Closed comedomes

A

‘Whiteheads’

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5
Q

Open comedomes

A

Blackheads

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6
Q
A

Nodulocystic acne

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7
Q
A

Nodulocystic acne

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8
Q
A

Acne scars

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9
Q

Treating acne principles

A

Avoid humidity and greasy moisturisers

Topical antibiotics (clindamycin)
Benzoyl peroxide
Retinoids
Oral antibiotics (doxycycline)
Anti-androgens (female - spirinolactone)
Isotretinoin
Blue light

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10
Q

What is isotretinoin?

A

95% successful, only treatment that produces long term remission (25% recur)

Use low dose

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11
Q

ADRs isotretinoin

A

Teratogenic (at all doses)
Dryness
Sun sensitivity
Fragile skin
Aching muscles
Fatigue
Moody

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12
Q
A

Acne inversa - groin, axillae

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13
Q
A

Acne inversa (NOT boils - no use to lance or use penicillins)

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14
Q
A

Rosacea

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15
Q
A

Rosacea

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16
Q

Triggers for rosacea

A

Heat, alcohol, spicy foods

17
Q
A

Periorifical dermatitis

18
Q
A

Periorificial dermatitis

19
Q

Treatment - periorificial dermatitis

A

Tetracycline or erythromycin

20
Q

How to differentiate between acne inversa + boils?

A

Swab - usually S aureus for boils

21
Q

Metronidazole can be used for…

22
Q
A

Palmoplantar pustolosis (sterile)

23
Q

How to differentiate between infected eczema and palmoplantar pustolosis?

A

Second one is sterile so swab it.

24
Q
A

Generalised pustular psoriasis

Diff from plaque psoriasis

25
Q
A

geenralised pustular psoriasis

26
Q
A

Generalised pustular psoriasis of pregnancy

3rd trimester, URGENT as infant mortality + some MUM mortality

MSK (7 decks)

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