Psoriasis Flashcards Preview

Dermatology > Psoriasis > Flashcards

Flashcards in Psoriasis Deck (36):
1

What % of the population are affected by psoriasis?

2%

2

M:F?

1:1

3

Does psoriasis cause scaring?

No but it can cause temporary discolouration

4

Is psoriasis generally predictable?

Generally not (although it can have triggers)

5

Can psoriasis affect anything other than skin?

Yes - nails and joints as well

6

What condition can be associated with ~30% of moderate to severe psoriasis?

Psoriatic arthritis

7

What factors influence psoriasis?

Genetic and environmental

8

Is there a familial connection in psoriasis?

Yes

9

What does psoriatic skin look like?

Red and scaly

10

What is the underlying pathogenesis of psoriasis?

Increased rate of turnover of skin cells (from about 3-4 weeks to 3-4 days)

11

What are some common triggers?

Infections
Stress
Alcohol
Smoking
Certain medications

12

What medications can trigger psoriasis?

Beta blockers
Lithium
Anti-malarials

13

What can happen on the hands and feet in psoriasis? Why?

Fissures can form as there is thickened skin there which cracks more due to the increased turnover of cells

14

What is the technical term for psoriatic skin changes?

Plaques

15

How many patterns of psoriasis are recognised?

4

16

What are the 4 types of psoriasis patterns?

1. Chronic plaque
2. Guttate
3. Palmoplantar
4. Pustular

17

What is the most common pattern of psoriasis?

Chronic plaque psoriasis

18

How does chronic plaque psoriasis appear?

Plaques present on the knees, elbows, trunk and scalp most commonly

19

What is guttate psoriasis?

Small plaques over trunk and limbs usually precipitated by streptococcus infection

20

Where does palmoplantar psoriasis affect?

The hands and feet

21

Where does pustular psoriasis affect?

Trunk and limbs

22

How is pustular psoriasis different?

It is rare, the plaques are studded with tiny pus spots

23

What are the features of nail psoriasis? (4)

-Nail surface pitting
-Pink nail bed discolouration
-Nail thickening
-Nail plate and bed separation

24

Who diagnoses psoriasis?

Rheumatologist usually, but GP and dermatologist contribute

25

What is the PGA?

Physician global assessment

26

What does the PGA assess?

Overall impression of severity of psoriasis

27

What can be used to screen for psoriasis?

PEST score

28

What does PEST stand for?

Psoriasis Epidemiology Screening Tool

29

Can psoriasis be cured?

Nope

30

How can psoriasis be treated initially?

Topical treatments such as creams, ointments, pastes and lotions

31

How does phototherapy work?

Controlled UV light is used to clear psoriasis

32

What tablets can be used for systemic treatment?

Aciretin
Ciclosporin
Methotrexate

33

What can be injected to treat psoriasis?

Monoclonal antibodies such as adalimumab and infliximab

34

What are the 2 varitions of chronic plaque psoriasis?

Scalp psoriasis and flexural psoriasis

35

What does pustular psoriasis require?

Urgent care by a dermatologist

36

When does guttate psoriasis usually occur?

After a sore throat