Dermatology Flashcards
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What is the leading cause for dry skin?
Towels
What get wet while it drys?
Towels
What has a dry sense of humour?
Me… and towels
What conditions are included in “atopy”?
Eczema Rhinitis Asthma
Describe an Acne lesion?
Steroids
Describe a Macule lesion?
Flat <10mm
Describe a Patch lesion?
Flat >10mm
Describe a Plaque lesion?
Elevated or depressed >10mm
Describe a Papule lesion?
Elevated or depressed < 10mm
Describe a Nodule lesion?
Firm Extending into the dermis
Describe a Vesicle lesion?
Elevated Fluid filled <10mm
Describe a Pustules lesion?
Elevated Puss filled >10mm
Describe a Bulla lesions?
Elevated Clear fluid blister <10mm
Describe a targatoid lesion?
Coin shaped with central duskiness
Describe a Reticulate lesion?
Lesions in a net like pattern
Describe a Lichenfied lesion?
Increased thickening of the skin
Describe a Excoriated lesion?
Partial or complete loss of epidermis
What symptom are typical of Eczema?
Itchy dry lesion in a flexor distribution and on cheeks in children. Onset <2 years with other feature of atopy
What Endogenous types of Eczema are there?
Atopic Varicose Seborrhoeic
What exogenous types of eczema are there?
Photodermatitis Contact irritant eczema Contact allergic eczema
How is Eczema with a infection treated?
Topical treatment of Fucidin H cream BD
What is Eczema herpeticum?
Worsening Eczema caused by herpes simplex virus
What is the 1st line treatments for eczema?
Topicals- emollients, creams etc.
What is the 2nd line treatment for eczema?
steroids Calcineurin inhibitors
What are Calcineurin inhibitors?
Suppress T cel responce, are often use to avoid SE of long term steroids
What is the last line of therapy for eczema?
Systemic steroids or immunosuppresion.
Is phototherapy effective in eczema?
Yes, used for severe or resistant eczema
What questions should be asked about a rash?
- Duration - Temporal pattern - Distribution - Associated symptoms - Exacerbation and relieving factors
What is erythrodermic eczema?
Covering more than 90% of the body
What can cause erythrodermic eczema?
Withdraw of steroid 2nd to infection Psychological stress Contact dermatitis
What is the most common type of psoriasis?
Chronic plaque psoriasis
What psoriasis occurs after strep. throat?
Guttate psoriases, can progress CPP
What can trigger psoriasis?
Infection Stress Durgs - alcohol, abx
Is there a genetic component to psoriasis?
Yes T 1 - <40yo 75% of patens T2 - 1st time 55-60, 25% of patient
What factors are involved in the pathophysiology of psoriasis?
- Epidermal hyperplasia - Angiogenesis - T cell infiltration - TNF-a
What is the Auspitz sign?
Removal of scales reveals pin prick bleeding points under the skin
What is the likely diagnosis?
Eczema herpeticum
- rapid progression
- Paingul
- Eroded punched out lesion
- vesicles
- fever
What type of lesion is…
Macule
- flat
- < 10 mm