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66 Cards in this Set
- Front
- Back
Sharp, oval, circular
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Halo nevus
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depigmented halo around mole
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Halo Nevus
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many morphological changes, usually disappears and halo repigments (May take years)
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Halo Nevus
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Dome Shaped; raised; flesh to black color
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Intradermal nevus
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may be pedunculated or Hair bearing
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Intradermal nevus
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Flat to slightly elevated; dark brown
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junction nevus
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slightly elevated brownish papule
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compound nevus
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indistinct border
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compound nevus
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may be present at birth
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hairy nevus
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may cover large area
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hairy nevus
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usual yon the back in young adults
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halo nevus
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cells limited to dermis
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intradermal nevus
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nevus cells lining dermoepidermal junction
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junction nevus
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nevus cells in dermis and lining dermoepidermal junction
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Compound nevus
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usually benign; biopsy indicated because same process can occur around melanoma
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halo nevus
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no indication for removal other than cosmetic
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intradermal nevus
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should be removed if exposed to repeated trauma
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junction and compound nevus
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should be removed if changes occur
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Hairy nevus
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uniformly tan/brown; all moles on one person tend to look alike
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Normal mole
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mixture of tan, brown, black, and red/pink; moles on 1 person often do not look alike
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Dysplastic mole
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Round or oval with a clearly defined border that separates the mole from surrounding skin
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Normal mole
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irregular borders may include notches; May fade into surrounding skin and include a flat portion level with skin
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Dysplastic mole
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begins as flat, smooth spot on skin; becomes raised; forms a smooth bump
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Normal mole
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may be smooth, slightly scaly, or have a rough, irregular, "pebbly" appearance
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Dysplastic mole
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usually less than 6mm
(size of pencil eraser) |
Normal mole
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Often larger than 6mm and sometimes larger than 10mm
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Dysplastic mole
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Typical Adult has 10-40 moles scattered over the body
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Normal mole
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more than 100 moles
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Dysplastic
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Usually above the waist on sun-exposed surfaces of the body; scalp, breast, and buttocks rarely have normal moles
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Normal mole
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May occur anywhere on the body but most commonly on the BACK. May also appear below the waste and on the scalp, breast and buttocks.
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Dysplastic mole
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Cause of BROWN skin change
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darkening of melanin pigment
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Cause of WHITE skin changes
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absence of melanin
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Cause of redness/erythema
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increased cutaneous blood flow
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Causes of YELLOW skin pigment
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INCREASED: Cutaneous blood flow, RBCs, bile pigmentation (jaundice), carotene pigment.
DECREASED: visibility of oxyhemoglobin |
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Causes of BLUE skin pigment
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Increased UNsaturated Hb secondary to hypoxia
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Generalized, darkening/brown pigment
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Pituitary, adrenal, liver disease
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Localized darkening/brown pigment
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Nevi, neurofibromatosis
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Generalized whitening of skin
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albinism
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Localized whitening of skin
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vitiligo
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Generalized reddening of skin
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Fever, viral exanthem, urticaria
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Localized reddening of skin
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Inflammation
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Generalized yellowing of skin
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Polycythemia, liver disease, hypothyroidism (increased carotene pigment) and eating too many vegetables with carotene, anemia, and chronic renal disease
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Blue-ing of lips, mouth, and nail beds can be caused by what disease?
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Cardiovascular and pulmonary disease
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What are discolorations produced by injury?
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Ecchymoses
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Red-purple non-blanchable discoloration greater than 0.5 cm in diameter
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Purpura
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What can cause a Purpura?
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Intravascular defect, infection
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Red central body with radiating spider-like legs that blanch with pressure to teh central body
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Spider angioma
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What causes a spider angioma?
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Liver disease, vitamin B deficiency, idiopathic
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Bluish spider, linear/irregularly shaped; does not blanch with pressure
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Venous star
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What causes a venous star?
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Increased pressure in superficial veins
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Red-purple nonblanchable discoloration LESS than 0.5 cm diameter
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Petechiae
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Causes of petechiae
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intravascular defects, infection
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Fine, irregular red line
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Telangiectasis
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What causes telangiectasis?
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dilation of capillaries
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red-purple non-blanchable discoloration of variable size
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Ecchymoses
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Cause of ecchymoses?
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Vascular wall destruction, trauma, vasculitis
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red irregular macular patches
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Capillary Hemangioma (Nevus flameus)
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Cause of Capillary Hemangioma
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Dilation of dermal capillaries
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Rotten apples
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Clostridium gas gangrene
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Mousy
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Proteus infection
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Grapelike
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Pseudomonas infection (especially burns)
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Pungent
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Schizophrenia
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Stale beer
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Tuberculosis lymphadenitis (scrofula)
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Putrid
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Anaerobic infection; scurvy
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Feculent
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Intestinal obstruction, peritonitis
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Mousy, musty
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Phenylketonuria
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