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39 Cards in this Set
- Front
- Back
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lesion
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an area of pathologically altered tissue
(2 types: primary & secondary) |
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lesion:
1 - primary lesions |
lesions arising from previously normal skin
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lesion:
1 - primary lesions |
flat, nonpalpable changes in skin colour
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lesion:
1 - primary lesions |
macule (macula)
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lesion:
1 - primary lesions - macule (macula) |
a flat, discoloured area on the skin up to 1cm across (eg: a freckle)
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lesion:
1 - primary lesions - patch |
a flat, discoloured area on the skin larger than 1cm (eg: vitiligo)
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lesion:
2 - elevated, palpable, solid masses |
papule
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lesion:
2 - elevated, palpable, solid masses -papule |
a solid mass on the skin up to 0.5cm in diameter, (eg: a nevus [mole])
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lesion:
2 - elevated, palpable, solid masses -plaque |
a solid mass greater than 1cm in diameter, limited to the surface of the skin
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2 - elevated, palpable, solid masses
-nodule |
a solid mass greater than 1cm, which extends deeper into the epidermis
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3 - elevated, palpable, solid masses
-tumor |
a solid mass larger than 1-2cm
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3 - elevated, palpable, solid masses
-wheal |
an area of localized skin edema (swelling) (eg: a hive)
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3 - elevation formed by fluid within a cavity
-vesicle |
little bladder; an elevated, fluid-filled sac (blister) within or under the epidermis up to 0.5cm in diameter (eg: a fever blister)
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3 - elevation formed by fluid within a cavity
-bulla |
a blister larger than 0.5cm (eg: a second-degree burn) (bulla=bubble)
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3 - elevation formed by fluid within a cavity
-pustule |
a pus-filled sac (eg: a pimple)
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secondary lesions
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lesions that result in changes in primary lesions
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secondary lesions types
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1-loss of skin surface
2-material on skin surface 3-other secondary lesions |
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secondary lesions type:
1-loss of skin surface |
(a)- erosion
(b)- ulcer (c)- excoriation (d)- fissure |
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secondary lesions type:
1-loss of skin surface (a)-erosion |
to gnaw away; loss of superficial epidermis leaving an area of moisture but no bleeding (eg:area of moisture after rupture of a vesicle)
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secondary lesions type:
1-loss of skin surface (a)-ulcer |
an open sore on the skin or mucous membrane that can bleed & scar & is sometimes accompanied by infection (eg: decubitus ulcer)
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secondary lesions type:
1-loss of skin surface (a)-excoriation |
a scratch mark (eg: from a cat scratch)
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secondary lesions type:
1-loss of skin surface (a)-fissure |
a linear crack in the skin
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secondary lesions type:
2-material on skin surface |
(a)- scale
(b)- crust |
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secondary lesions type:
2-material on skin surface (a)- scale |
a thin flake of exfoliated epidermis
(eg: dandruff) |
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secondary lesions type:
2-material on skin surface (a)- crust |
dried residue of serum (body liquid), pus, or blood on the skin (eg: in impetigo)
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other secondary lesions
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1- cicatrix of the skin
2- keloid |
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other secondary lesions
1- cicatrix of the skin |
a mark left by the healing of a sore or wound showing the replacement of destroyed tissue by fibrous tissue (cicatrix=scar)
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other secondary lesions
2- keloid |
an abnormal overgrowth of scar tissue that is thick & irregular (kele=tumor)
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other secondary lesions, vascular lesions
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lesions of a blood vessel
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other secondary lesions, vascular lesions:
1- cherry angioma |
a small, round, bright-red blood vessel tumor on the skin, often on the trunk of the elderly
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other secondary lesions, vascular lesions:
1- telangiectasia = ? |
spider angioma
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other secondary lesions, vascular lesions:
1- telangiectasia (spider angioma) |
a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels radiating from a central arteriole, most commonly seen on the face, neck or chest (telos=end)
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other secondary lesions, pupuric lesions
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purpura; lesions as a result of hemorrhages into the skin
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other secondary lesions, pupuric lesions:
1- petechia |
spot; a reddish-brwon, minute hemorrhagic spot on the skin that indicates a bleeding tendency--small pupura
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other secondary lesions, pupuric lesions:
1- ecchymosis |
bruise; a black & blue mark--large purpura (chymo=juice)
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other secondary lesions, epidermal tumors
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skin tumors arising from the epidermis
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other secondary lesions, epidermal tumors:
1- nevus |
a congenital malformation on the skin that can be epidermal or vascular--also called a mole
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other secondary lesions, epidermal tumors:
2- dysplastic nevus |
a mole with precancerous changes
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other secondary lesions, epidermal tumors:
3- verruca |
an epidermal tumor caused by a papilloma virus--also called a wart
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