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Those lesions present at the inital onset of the disease |
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Flat, circumscribed, discolored, brown, red, white or tan, example: vitiligo, tattoo, freckles
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elevated spot, palpable, firm, circumscribed, genearlly less than 5 mm, example scabies, insect bites, wart
raised and defined
[image] |
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Elevated, flat topped, firm, rough, superficia papule, greater than 2 cm in diameter. Papules can coalesce to form plaques, example psoriasis
[image] |
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elevated, firm, circumscribed, palpable, can involve all layers of the skin, larger than 5mm in diamater, example erhtyema nodosum, basal cell carcinoma
[image] |
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Elevated, irregular shaped area of cutaneous oedema, solid, transient, changing, variable in diameter, red, pale pink or white in color, example urticaria
[image] |
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Definition
elevated, circumscribed, superficial fluid filled blister, less than 5mm in diamaeter. Example herpes simples, pompholyx, chicken pox
[image] |
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vesicle greater than 5mm in diameter. Example bullous pempigoid
[image] |
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elevated, superficial, similar to vesicle but filled with pus. Example: impetigo
[image] |
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Definition
| are the result of changes over time caused by disease progression, manipulation (scratching, rubbing, picking) or treatments |
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heaped up keratinised cells, flaky exfoliation, irregular, thick or thin, dry of oily, variable size, silver, white or tan in color. Example: psoriasis
[image] |
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Definition
dried serum, blood or purulent exudate, slightly elevated, size variable. Examples: Impetigo, discoid pattern atopic eczema
[image] |
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Term
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Definition
loss of epidermis, linear area usually due to scratching
example atopic eczema, cat scratches |
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Definition
rough, thickened epidermis, accentuated skin markings caused by rubbing or scratching. Example chronic eczema, licen simplex
[image] |
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asymmetry, border irregularity, color, diamenter >6mm, evolution over time
[image] |
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| loss of elastin, collagen and subcutaneous fat, reslultin in thinning of skin. Effects result in decreased resiliance, sagging and wrikling of skin structures and increased visibility and fragility of superficial vascular structures. turgor decreases. |
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Actinic keratosis is a small, rough, raised area found on skin that has been exposed to the sun over a long period of time. precancerous.
[image] |
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sun induced freckle, liver spot
[image] |
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| linear brak in skin surface,not related to trauma |
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| loss of skin surface, extending into dermis, subcutaneous, fascia, muscle, bone or all. Pressure ulcers, vascular ulcers, neropathic ulcers. |
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| loss of epidermal layer, usually not extending into dermis or subcutaneous layer |
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| small, marked with points or dots |
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| papilla -like,or finger like projections, similar to tongue papillae. example: warts |
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circumscribed with rough surface
example: warts |
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| distributed widely across affected area without any pattern |
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| ditributed over large body area |
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| with anlargement or multiplication begin to coalesce to form larger lesions |
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| single, seperated, well-defined borders |
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| single lesions in close proximity to larger lesion as if "orbiting" |
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| distributed equally on both sides of body |
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distributed along dermatome
a dermatome is an area supplied by mainly one spinal nerve. Viruses like herpes zoster that affect spianl nerves can reveal their origin by showing up as a painflu dermatomic area |
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