Guttate Psoriasis & Pityriasis Rosea Flashcards
1
Q
What population is guttate psoriasis more common in?
A
Children and adults younger than 30 years of age.
2
Q
What precipitates it?
A
A streptococcal infection 2-4 weeks prior.
3
Q
A
4
Q
How do you describe guttate psoriasis?
A
As tear drop papules on the trunk and limbs.
5
Q
How do you manage guttate psoriasis?
A
- Most cases resolve spontaneously within 2-3 months.
- Topical agents as per psoriasis.
- UVB phototherapy
- Tonsillectomy may be necessary with recurrent infectinos.
6
Q
How do you differentiate between pityriasis rosea and guttate psoriasis?
A
-
Prodrome
- Guttate psoriasis - preceded by sore throat 2-4 weeks prior.
- Pityriasis rosea - Recent respiratory tract infections.
-
Apperance
- Guttate psoriasis- Tear drop scaly papules on the trunks and limbs.
- Pityriasis rosea - Herald patches followed 1-2 weeks later by multiple erythematous slightly raised oval lesions with fine scale confied to the outer aspects of the lesions. May run parallel to Langer’s Lines which can produce a fir tree apperance.
-
Treatment
- Most resolve spontaneously in 2-3 months. Psoriasis treatment.
- Self-limiting and resolves after around 6 weeks.
7
Q
What is the cause of pityriasis rosea?
A
unknown but thought to be Herpes hominis virus 7
8
Q
A
9
Q
A
10
Q
Who tends to get pityriasis rosea?
A
Young adults.
11
Q
What is the management for pityriasis rosea?
A
Self limiting and usually disappears after 4-6 weeks.
