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trincam2008
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Functions of the skin
SKINS
Specialised sensory innervation/Synthesise Vitamin D/Secretes pheromonesfor Sex
K Keeps out unwanted molecules, microbes or radiation/Keeps in water,electrolytes and solutes
I Immunological function; contains antigen-presenting cells
N Normalises heat regulation
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Common allergens for allergic contact dermatitis
CONTACTC
- Cutaneous type IV reaction
- O Ointments and cosmetics containing lanolin
- N Nickel
- T Topical antibiotics can cause it (e.g. neomycin)
- A Autosensitisation can occur (secondary spread elsewhere)
- C Chromates (cement, leather)/Colophony (plasters, glues, inks)
- T Topical antihistamines and topical anaesthetics (haemorrhoid creams) can cause it
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Infestations - Clinical presentation of impetigo
IMPETIGO
- Causes
- I Infection with Staphylococcus aureus, Streptococcus pyogenes or both
- Presenting
- M Mostly in young children
- P Particularly around nose and surrounding parts of face
- E Erythematous base with honey-coloured crusts
- Treatment and prevent spread
- T Treat with Topical antibiotic such as fusidic acid for localized lesions
- I Individuals are highly contagious from skin-to-skin contact; Improve hygiene;do not share towels
- Dx and systemic
- G Gram stain and culture of swab diagnostic
- O Oral flucloxacillin required for widespread impetigo
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Squamous cell carcinoma - Clinical presentation
S, CELL, C
- S Sun-exposed areas usu affected: ears, dorsum of the hands, bald scalp
- C Crusted, firm, irregular lesion
- E Excision used as treatment
- L Lower lip can be affected in smokers
- L Less likely to metastasise
- C Associated with Chronic inflammation such as venous leg ulcers
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