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35 Cards in this Set
- Front
- Back
Macule |
A flat, non-palpable spot on the skin, up to
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Macule example |
Freckle, labial macule |
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Patch |
A flat, non-palpable spot on the skin, more
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Patch example |
Birthmarks |
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Papule |
Elevated solid area up to 1 cm in diameter. |
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Papule example |
Mole -nevus (pic), acne |
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Nodule |
Elevated solid area larger than 1 cm in diameter - a large papule. |
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Plaque |
Elevated flat-topped area more than 1 cm in
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Plaque example |
Psoriasis |
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Blister |
General term for a vesicle or bulla. |
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Vesicle |
A fluid filled raised area less than 1 cm. |
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Vesicle example |
Chickenpox - vericella and shingles - zoster (pic) |
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Bulla |
A fluid filled raised area more than 1 cm - a large vesicle. |
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Bulla example |
Bullous pemphigoid |
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Pustule |
A discrete, puss filled raised area. |
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Pustule example |
Pustular psoriasis |
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Scale |
Dry, plate-like flaking off of stratum corneum due to abnormal cornification. |
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Scale example |
Eczema, psoriasis, and squamous cell carcinoma (pic) |
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Crust |
Dried serum, blood or exudate overlying areas of lost or damaged epidermis. |
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Crust example |
Impentigo |
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Lichenification |
Thickened, rough skin with prominent markings, usually from rubbing. |
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Lichenification example |
Atopic dermatitis |
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Excoriation |
Traumatic lesion breaking the epidermis causing a red linear mark i.e a deep scratch, often self inflicted. |
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Erosion |
Depressed lesion due to loss of all or part of the epidermis. |
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Ulcer |
Loss of the epidermis, and all or part of the dermis and/or the subcutaneous tissue - a deep erosion. |
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Wheal |
Elevated, compressible and often transient lesion caused by edema in the dermis. |
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Wheal example |
Hives (urticaria) |
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Hyperkeratosis |
Increase in thickness of the cornified (keratinized) layer of the epidermis, or the startum corneum. Ex; psoriasis, calluses |
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Parakeratosis |
Abnormal keratinization characterized by retention of nuclei in the stratum corneum. Ex; psoriasis |
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Dyskeratosis |
Premature keratinization of individual cells or groups of cells in the epidermis. |
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Papillomatosis |
Thickening of the epidermis and dermis resulting in the formation of finger like processes (papillae), as seen in warts. |
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Acanthosis |
Epidermal hyperplasia resulting in a thickened epidermis, specifically in the stratum spinosum. Ex; acanthosis nigricans |
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Acantholysis |
Loss of intercellular connections, resulting in a loss of cohesion between keratinocytes in the epidermis. Ex; pemphigus vulgaris |
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Spongiosis |
Intercellular edema of the epidermis. Ex; eczematous dermatitis |
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Lentiginous |
A linear pattern of melanocytic proliferation in the basal later of the epidermis. |