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2.terminology used in dermatology rp
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2.terminology used in dermatology rp

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  • 1. Terminology used in Dermatology Dr Robert Paver Dermatologist Medical DirectorSkin and Cancer Foundation Westmead
  • 2. Clinical TerminologyColour: Erythema, pigmentation, purpuraShape: discoid (round), annular (peripheral rim with normal centre), serpiginous, (snake like)Macule: Flat circumscribed area of discolourationPapule: Small lump <5mmNodule: Larger lump >5mm
  • 3. Clinical TerminologyPlaque - Circumscribed area of elevated skinErosion - Area of loss of epidermisExcoriation - Ulceration due to scratching
  • 4. Clinical TerminologyFissure - Crack though epidermis into dermisUlcer - Loss of epidermis, some dermis and possibly fat
  • 5. Clinical TerminologySurface changesCrust – accumulated dried exudateScale – visible flakes of shedding keratin (dead epidermal cells)Lichenification - thickened skin secondary to scratching
  • 6. Clinical TerminologyFluid filled lesionsVesicle – small collection of fluid (<5mm)Bulla – Larger collection of fluid (>5mm)Pustule – visible accumulation of pus
  • 7. Clinical Terminology Miscellaneous termsTelangiectasia – small blood vessels visible on skin surfaceAlopecia - area of hair lossBlood in the skinPetechiae (small dots) Larger patches(Purpura)
  • 8. Treatment of Skin Disease - Topical Bases for topical products Creams - usually white, need a preservative, used for subacute conditions Ointments - emollients, occlusive, chronic conditions
  • 9. Treatment of Skin Disease - Topical Paints and lotions Drying effect, best for weeping (acute)rashes and hair bearing areas Gels clear, greaseless, dry when applied, good for face
  • 10. Treatment of Skin Disease - Topical Powders have a drying effect and often used for rashes in intertriginous areas (eg groin, between toes, under breasts) Pastes are a combination of an ointment and a powder and are less greasy then ointments and tend to stick on longer.
  • 11. ReferencesAustralasian College of Dermatologists OnlineStudent Teaching ModulesImages and Explanations of all skin diseases www.dermnetnz.orgLecture Notes on Dermatology (Brown andBurns) Blackwell PublishingSkin Disease Diagnosis and Treatment (Habif) Elsevier Mosby Publishing
  • 12. The End