Skin Lesions
Thinning and loss of skin layers
What is atrophy?
Crack in the skin that breaks through keratin
What is a fissure?
Solid lump larger than 0.5 cm in diameter
What is a nodule?
Fragment of dry skin
What is a scale?
Transient pink, itchy, elevated papules that evolve into irregular red maculopapular patches
What are wheals/urticaria?
Large blister (larger than 0.5 cm in diameter)
What is a bulla?
Hardening or thickening of the skin
What is an induration?
Raised, well-defined lesion, usually smaller than 0.5 cm in diameter
What is a papule?
Permanent replacement of normal skin with connective tissue
What is a scar?
Does not look like it did when first developed?
What is a skin lesion after a person has scratched it? It is common that a lesion will not be the same as when it first develops.
Dried yellowish or yellow-brown exudate on the skin
What is a crust?
Irregular, elevated scar tissue formed by excessive collagen growth during wound healing
What is a keloid?
Raised, flat-topped lesion, usually larger than 2 cm in diameter
What is a plaque?
Fine, irregular, red lines produced by dilation of the capillaries
What is telangiectasia?
Can be a sign of something systemic.
What are skin lesions?
Reddened skin; area blanches with pressure
What is erythema?
Hardening or thickening of the skin with markings; lichenification develops from repeated trauma such as scratching
What is lichenification?
Purplish lesion caused by free red blood cells in the skin; does not blanch on pressure and may be nodular
What is purpura?
Loss of epidermal and dermal tissue
What is an ulcer?
Temporary eruption of the skin associated with systemic disease, heat, irritation, allergy, or a response to drug therapy
What is a rash?
Scratch that breaks the skin’s surface.
What is an excoriation?
Defined, flat area of altered pigmentation
What is a macule?
Papule filled with pus
What is a pustule?
Blister smaller than 0.5 cm in diameter
What is a vesicle?
Traumatic or pathological loss of normal skin continuity, structure, or function
What is a skin lesion?