Psoriasis: Difference between revisions
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==Background== | ==Background== | ||
*Often begins in the 2nd or 3rd decade of life | *Often begins in the 2nd or 3rd decade of life | ||
**Chronic and relapsing | **Chronic and relapsing | ||
==Triggers== | ===Triggers=== | ||
*Stress | *Stress | ||
*Trauma | *Trauma | ||
| Line 11: | Line 9: | ||
==Clinical Presentation== | ==Clinical Presentation== | ||
[[File:Psoriasis infliximab ar1182-2.gif|thumb|[[Psoriasis]] before and after treatment.]] | |||
*Well-demarcated erythematous plaques and papules with silvery white scales | |||
**Epidermal hyperproliferation | |||
*Commonly found on the trunk, scalp, nail pitting, and extensor surfaces | *Commonly found on the trunk, scalp, nail pitting, and extensor surfaces | ||
*Auspitz sign: plaque removal reveals pinpoint-bleeding areas | *Auspitz sign: plaque removal reveals pinpoint-bleeding areas | ||
==Differential Diagnosis== | |||
{{Generalized rash DDX}} | |||
==Management== | ==Management== | ||
*Ketoconazole 2% shampoo | *Ketoconazole 2% shampoo | ||
*Hydrocortisone cream 1% | *Hydrocortisone cream 1% | ||
*Systemic steroids should be avoided due to the risk of developing rebound or induction of pustular psoriasis | |||
== | ==See Also== | ||
* | *[[Generalized rashes]] | ||
==Sources== | ==Sources== | ||
Revision as of 04:09, 4 January 2015
Background
- Often begins in the 2nd or 3rd decade of life
- Chronic and relapsing
Triggers
- Stress
- Trauma
- Drugs
Clinical Presentation
Psoriasis before and after treatment.
- Well-demarcated erythematous plaques and papules with silvery white scales
- Epidermal hyperproliferation
- Commonly found on the trunk, scalp, nail pitting, and extensor surfaces
- Auspitz sign: plaque removal reveals pinpoint-bleeding areas
Differential Diagnosis
Other Rash
- Acute generalized exanthematous pustulosis
- Allergic reaction
- Aphthous stomatitis
- Atopic dermatitis
- Coxsackie
- Dermatitis herpetiformis
- Exfoliative erythroderma
- Impetigo
- Pellagra
- Pityriasis rosea
- Serum Sickness
- Tinea capitus
- Tinea corporis
- Vitiligo
Management
- Ketoconazole 2% shampoo
- Hydrocortisone cream 1%
- Systemic steroids should be avoided due to the risk of developing rebound or induction of pustular psoriasis
See Also
Sources
- Uptodate
- Hess MR, Hess SP: Skin Disorders Common on the Trunck, in Tintinalli JE, Kelen GD, Stapczynski JS (eds): Emergency Medicine, A Comprehensive Study Guide, ed 7. New York, McGraw-Hill, 2011, (Ch) 249:p 1653-1654