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FINALS revision - @medicbotanist > Dermatology > Flashcards

Dermatology Flashcards

1
Q

What are 3 functions of the skin?

A

Protective Barrier

Thermoregulation

Regulation of H2O and Vit D synthesis

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2
Q

What are the 5 layers of the epidermis?

A

Striatum Corneum

Striatum Lucidum

Striatum Granulosumn

Striatum Spinosum

Striatum Basale

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3
Q

What structures are in Dermis?

A

Meissner’s (light touch)

Pacinian (coarse touch)

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4
Q

What are the three managements stages for eczema?

A
  1. Emollient Cream
  2. Hydrocortisone cream
  3. Topical calcineurin inhibitors like tacrolimus
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5
Q

What is the first line medication used for psoriasis ?

A
  1. Emollient
  2. Short course steroid cream
  3. Topical Vit D analogue (topical calcitriol)
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6
Q

What will be seen on microscopy in a patient with pityriasis versicolour?

A
  1. Spaghetti and Meatball appearance
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7
Q

What is the management of eczema hepticum ?

A
  1. Acicloyvir
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8
Q

What is a keratoacanthoma?

how do you manage it?

A

This is a lesion that resembles a bowel or volcano. It normally has a scabby top

Over time it will involuted and disappear in on its self.

No treatment needed

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9
Q

What does the ABCDE mneumonic stand for?

A

Assymetry

Border (irregular?)

Colour

Diameter >6mm

Evolving

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10
Q

What virus causes Molluscum Contagiousm?

A

Pox virus

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11
Q

What is the difference between a pilar and a epidermoid cyst?

A

Pillar: AD inheritence. Generally found on the scalp

Epidermoid: these are found on the face, scalp and neck.

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12
Q

Where are pillar cysts found?

A

On the scalp

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13
Q

What is a characteristic sign of a dermatofibroma?

A

Pinch the skin and it will dimple on the top

Not uncommon to have blood vessels on surface

No management needed

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14
Q

What are the 5 principles of wound healing?

A
  1. Haemostasis
  2. Inflammation
  3. Epitherialisation
  4. Fibroplasia
  5. Maturation
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15
Q

What is a seborrhoeic keratosis?

A

Basically a wart. They are flat topped and look like they have just been stuck on the surface of the skin.

No concern. just reassure

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16
Q

What condition is associated with a large amount of seborrhoeic warts?

A

Le Trelat sign associated with underlying malignancy

17
Q

What is the pathophysiology behind psoriasis?

A

You get too many keratinocytes

18
Q

What is the treatment for guttate psoriasis?

A

topical steroids

19
Q

What is the management of plantar palmar psoriasis?

A

Emollients
Corticosteroids
Phototherapy

20
Q

What is the management of malignant melanoma?

A

You do initial

narrow excision and send off the sample for histology

Wide excision (aim is curative)

21
Q

What can actinic keratosis become?

A

SCC

22
Q

What is the management of Actinic keratosis?

A

5- FU cream

23
Q

What are some clinical points pointing to a diagnosis of actinic keratosis and not SCC?

A

No lip involvement

No recent change in size

No bleeding

24
Q

What specific blood test would you want to do in someone with cellulitis?

A
  1. Anti- streptolycin O Titre (ASOT)
25
Q

What is generalised pustular psoriasis?

how does it present?

how do we treat it?

A

This is when you get sudden onset psoriasis in the flexures and genitals. You get fever, feeling unwell

Mx: IV analgesia, IV fluid, topical steroid + IV immunosupression.

26
Q

What are two causes of generalised generalised pustular psoriasis?

A

Penicillin

hydroxychloroquine

27
Q

What will be evident on the blood test results o someone with generalised pustular psoriasis?

A

You will have a High WCC with high neutrophils and lymphocytes
High CRP ESR

Abnormally raised LFTs

28
Q

If you think a patient may have a lipoma what is the key investigation you need to do?

A

MRI scan

29
Q

Describe the difference between non bullous and bullous impetigo?

A

Bullous: Thin roof and ruptures spontaneously. Generally linked to eczema and have systemic signs

Non Bullous: they just have the typical honey coloured rash

30
Q

How do you treat impetigo?

A

Fusidic Acid

Then if no response you can have oral abx amoxicillin

31
Q

What is the treatment of Bowen’s Disease?

A

5-FU cream

Cryotherapy and Surgery

32
Q

What do you use to treat warts?

A

Salicylic Acid!

THEN CRYOTHERAPY

FINALS revision - @medicbotanist (20 decks)

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