Basic Dermatology Terminology – Flashcards
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Striacutisdestensae
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A band or streak of linear, atrophic, pink, white, or purple lesions of the skin due to changes in the connective tissue
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Erythroderma
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A generalized redness of the skin
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Vegetation
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A growth of pathological tissue consisting of multiple closely set papillary masses
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Furuncle
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A localized pyogenic infection originating in a hair follicle
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Ecchymosis
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A macular red or purplish-blue hemorrhage from scratching
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Bulla
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A rounded or irregularly shaped blister greater than 0.5cm in diameter, containing serous or seropurulent material
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Alopecia
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Absence of hair in normally hairy areas of the skin
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Papilloma
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Benign tumor projecting from the skin
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Sinus
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Cavity or channel in the tissue
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Granuloma
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Chronic inflammatory tissue composed of macrophages, fibroblasts, and granulation tissue
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Sycosis
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Chronic pustular folliculitis and perifolliculitis involving the beard area
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Lichenification
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Chronic thickening of the epidermis with exaggeration of its normal markings; often from excessive rubbing or scratching
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Vesicle
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Circumscribed, fluid-containing, epidermal elevation 1-10mm in size
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Papule
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Circumscribed, solid elevations up to 0.5cm in diameter; present with various shapes
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Scar
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Collagen and connective tissue that replaces lost dermis
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Poikiloderma
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Dermatosis characterized by variegated cutaneous pigmentation, atrophy, and telangiectasia
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Necrobiosis
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Describes partial degeneration of tissue
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Purpura
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Discoloration of the skin or mucosa due to extravastion of blood
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Crusts
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Dried blood, serum, or pus mixed with epithelial and bacterial debris
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Scales
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Dry or greasy laminated masses of keratin
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Xerosis
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Dryness of the skin; usually presents with scaling, superficial fissures, and pruritis
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Verruca
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Epidermal tumor caused by a papillary virus; describes lesion with a warty surface
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Fibrosis
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Formation of excessive fibrous collagen in the tissues
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Sclerosis
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Hardening of induration of the skin; often due to fibrosis
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Keratosis
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Horny thickening of the skin
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Keratoderma
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Hyperplasia of the stratum corneum
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Cellulitis
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Inflammation of cellular tissue; purulent inflammation of the dermis, subcutaneous tissue, and soft tissues
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Pruritus
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Irritating skin sensation that elicits the scratch response; itch
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Follicular plugs
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Keratin plugs in the hair follicle 1-3mm in size
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Primary lesion
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Lesion that appears first
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Fissure
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Linear crack or cleft through the epidermis and often into the dermis
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Excoriation
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Linear or punctuate abrasion produced by mechanical trauma
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Abscess
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Localized collection of purulent material in a cavity formed by necrosis or disintegration of tissue
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Wheal
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Localized spike-shaped area of marked overgrowth of keratin; may stick out above the skin a half an inch or more
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Cutaneous horn
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Localized spike-shaped area of marked overgrowth of keratin; may stick out above the skin a half an inch or more
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Erosion
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Loss of all or portions of the epidermis; heals without scar tissue
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Denude
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Loss of epidermis
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Patch
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Macule greater than 1cm in diameter
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Carbuncle
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Necrotizing infection of the skin and subcutaneous tissue composed of a group of furuncles (boils)
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Kerion
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Nodular inflammatory, pustular lesion due to a fungal infection
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Plaque
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Papule great than 0.5cm in diameter; often formed by coalescence of papules; generally flat but may have central depression
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Nodule
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Papule greater than 1cm in diameter; deeper and firmer than a papule; centered in the dermis or subcutaneous adipose
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Lesion
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Pathological or traumatic loss of normal tissue continuity, structure, or function
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Comedo
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Plug of keratin and sebum in an orifice; blachhead
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Secondary lesion
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Primary lesion that has been modified by trauma, regression, or other extraneous factors
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Petechia
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Punctuate hemorrhage spot 1-2mm in diameter
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Malperforans ulcer
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Seen in diabetes and Hansen's disease; associated neuropathy so the ulcers are painless yet deep and destructive
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Burrow
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Small and short (as in scabies) or long and tortuous tunnels in the epidermis
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Pustule
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Small elevations of the skin containing purulent material
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Apatha
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Small ulcers of the mucous membranes
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Macule
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Small, circumscribed change in skin color, non palpable, present with various shapes
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Tumor
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Soft or firm, movable or fixed mass of various shape, larger than 2cm
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Rash
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Temporary eruptions of the skin
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Telangiectasia
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Visible vascular lesion formed by dilation of small cutaneous blood vessels
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Milia
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Whitish papules, 1-2mm in diameter with no visible opening onto skin surface
