Derm Flashcards
What are the risk factors for psoriasis?
Genetics Infection Local trauma Stress Smoking
How does psoriasis present?
Well circumscribe scaly plaques on extensor surfaces
What is Asupitz’s sign?
Pinpoint bleeding on psoriatic plaques
How does guttate psoriasis present?
Wide spread, erythematous fine scaly papules on trunk, arms, legs
How does pustular psoriasis present?
Acute generalised pustular regions
What does skin biopsy show in psoriasis?
Intra-epidermal spongiform pustules
How is plaque psoriasis managed?
Topical corticosteroid
Topical vit D analogue
Phototherapy
How is guttate psoriasis treated?
Phototherapy
Methotrexate
How is pustular psoriasis treated?
Oral retinoid (acitretin)
How does eczema present?
Pruritis
Dry skin
Erythema
Excoriations
What are the risk factors for eczema?
Age <5
FHx
Atopy
How is eczema managed?
Emollients
Intermittent corticosteroids
How does lichen planus present?
Pruiritis
Violaceous, flat topped papules
Wickham’s striae
What condition is lichen planus associated with?
Hep C
How is lichen planus treated?
Topical corticosteroid
Antihistamine
How does SCC present?
Irregular, keratinous nodule
Firm plaque
Ulcerates
Preceding actinic keratosis
What is Bowen’s disease?
SCC in situ
Which signalling pathway is involved in BCC?
Hedgehog
How does BCC present?
Slow growing plaque
Bleeding and ulceration
Mostly in old men
Which is HPV related - BCC or SCC?
SCC
How does a melanoma present?
Pre cursor lesions
Flat, varying colours, irregular shape
Itch/tenderness
