Chapter 24- Skin Lesion Definitions Flashcards
What lesions is described as:
-Traumatic lesions breaking the epidermis and causing a raw linear area, often self limiting
Excoriation
What lesions is described as:
-Thickened, rough skin, usually the result of repeated rubbing
Lichenification
What lesions is described as:
-Circumscribed, flat lesion distinguished from surrounding skin by color less than 5mm in diameter
Macule
What lesions is described as:
-Circumscribed, flat lesion distinguished from surrounding skin by color greater than 5mm in diameter
Patch
What lesions is described as:
-separation of the nail plate from nail bed
Onycholysis
What lesions is described as:
-elevated dome shaped or flat topped lesion less than 5mm across
Papule
What lesions is described as:
-elevated dome or flat topped lesion breather than 5mm in diameter
Nodule
What lesions is described as:
-Elevated flat topped lesions, usually greater than 5 mm across
May be caused by coalescent papules
What lesions is described as:
-Discrete, pus-filled, raised lesion
Pustule
What lesions is described as:
-Dry, horny, platelike,excrescence, usually the result of imperfect cornification
Scale
What lesions is described as:
-Fluid filled raise lesion 5mm or less in diameter
Vesicle
*Can be called a blister
What lesions is described as:
-Fluid filled raised lesion greater than 5mm in diameter
Bulla
*commonly called blister
What lesions is described as:
-itchy, transient, elevated lesions with variable blanching and erythema formed as the result of dermal edema
Wheal
What lesions is described as:
-diffuse epidermal hyperplasia
Acanthosis
What lesions is described as:
-abnormal, premature keratinization within cells below the stratum granulosum
Dyskeratosis
What lesions is described as:
-discontinuity of the skin showing incomplete loss of the epidermis
Erosion
What lesions is described as:
-infiltration of the epidermis by inflammatory cells
Exocytosis
What lesions is described as:
-intracellular edema of keratinocytes, often seen in viral infections
-Hydropic swelling aka ballooning
What lesions is described as:
-hyperplasia of the stratum granulosum, often due to intense rubbing
Hypergranulosis
What lesions is described as:
-thicking of the stratum corneum, often associated with qualitative abnormality of the keratin
Hyperkeratosis
What lesions is described as:
-a linear pattern of melanocytes proliferation within the epidermal basal cell layer
Lentiginous
What lesions is described as:
-surface elevation caused by hyperplasia and enlargement of contiguous dermal papillae
Papillomatosis
What lesions is described as:
-Keratinization writhing retained nuclei in the stratum corneum, but normal in mucous membranes
Parakeratosis
What lesions is described as:
-intracellular edema of the epidermis
Spongiosis
What lesions is described as:
-discontinuity of the skin showing complete loss of the epidermis revealing the dermis or subcutis
Ulceration
What lesions is described as:
-Formation of vacuoles within or adjacent to cells, often refereeing to the basal cell-basement membrane zone area
Vacuolization