Skin Flashcards
Acne vulgaris - Pathophysiology
Inflammatory disease of pilosebaceous follicles
Hormonal - increased androgen sensitivity
Acne vulgaris - Complications
Scars
Psychological/social
Erythematous/pigmented macules
Acne vulgaris - Treatment
Avoid over washing Don't pick Diet Topical retinoid and benzoyl peroxide Topical antibiotics (clindamycin) Oral antibiotics (doxycycline) Oral retinoid
General eczema - Pathophysioogy
Chronic, relapsing and remitting, inflammatory condition
Vesicles and bullae cause red scaly patches
General eczema - 2 Types
Endogenous - Atopic eczema (early childhood)
Exogenous - Contact dermatitis
Atopic eczema - Cause
Family history of atopy
Atopic eczema - Exacerbating factors
Infection
Strong detergents
Cats/dogs
Stress
Atopic eczema - Investigation
Serum IgE
Skin-prick test
RAST (Specific IgE)
Atopic eczema - Treatment
Avoid exacerbating factors
Frequent emmolients
Bath soap substitutes
Topical corticosteroids (mild, moderate, potent
Adjuvant therapy - Oral antibiotoics, oral antihistmaines, bandages
Phototherapy (severe)
Atopic eczema - Complications
Secondary bacterial/viral infection
Psoriasis - Pathophysiology
Chronic, inflammatory skin condition occurring due to hyperproliferation of keratinocytes
Chronic plaque
Psoriasis - Causes
Genetic
Environmental
Psoriasis - Exacerbating factors
Trauma Infection Drugs Stress Alcohol
Psoriasis - Symptoms
Red, scaly plaques Itchy Painful Nail changes Lower back, scalp, elbows, knees (extensor areas)
Psoriasis - Treatment
Avoid irritants
Use emmolients
1st line - Topical therapy (corticosteroids)
2nd line - Phototherapy, methotrexate
3rd line - Biological agents - TNF - alpha inhibitors
Venous ulcer - Pathophysiology
Venous disease involving varicose veins, DVT
Venous ulcer - Symptoms
Large, shallow, irregular Exudative and granulating Medial malleolus to knee Painful, worse standing Normal pulses
Venous ulcer - Treatment
Compression bandaging
What does ABPI stand for?
Ankle brachial pressure index
Arterial insufficiency = <0.8
Arterial ulcer - Pathophysiology
Atherosclerosis
Arterial ulcer - Symptoms
Small, defined, deep Necrotic base Very painful at night Pressure sites Absent peripheral pulses
Arterial ulcer - Investigations
ABPI (<0.8 = arterial insufficiency)
Doppler
Angiography