Erosion - loss of superficial epidermis. does not extend to dermis, moist (ruptured vesicles, scratch marks), Keloid - hypertrophied scar secondary to collagen formation during healing; elevated, red, irregular (common in African americans), Scar (Cicatrix) - mark left after healing wound/lesion; red, purple, white, glistening, Fissure - linear crack in skin that may extend to dermis (Chapped lips/hands, tinea pedis), Scales - Flakes secondary to dead epithelium that may adhere to surface. Color and texture may vary (Dandruff, psoriasis, dry skin), Atrophy - thin, dry, transparent appearance. Loss of collagen, elastin. (aged skin. arterial insufficiency, medication), Lichenification - thick, rough skin secondary to repeated rubbing, irritation (contact dermatitis), ulcer - Skin loss past, crust - dried residue of serum, blood, or pus on skin surface,

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