Skin, hair and nails Flashcards
Risk factors for melanoma
personal history family history moles (dysplastic, numerous or large) sun or UVA/UVB exposure fair skin, light eyes sun sensitivity, inability to tan
Risk factors for basal and squamous cell cancer
>50 sun or UVA/UVB exposure fair, freckled, ruddy light hair or eyes tendency to burn easily near equator
Equipment of skin assessment
ruler
flashlight with transilluminator
magnifying lens
Wood’s lamp
Mole assessment
Color Shape Surface Size Number Location
Telangiectasias: Capillary spider vs Spider angioma
Capillary spider - little masses of venules, when blanched will refill erratically
Spider angioma - arterial, when blanched will fill in an organized way from the center out
smells like rotten apples
Clostridium gas gangrene
smells mousy
Proteus infection
smells grapelike
pseudomonas
smells like stale beer
tuberculous lymphadenitits (scrofula)
smells putrid
anaerobic infection, scurvy
smells feculent
intestinal obstruction, peritonitis
smells mousy, musty
phenylketonuria
a flat, circumscribed area that is a change in the color of the skin, <1cm
macule
example: freckles, flat moles, measles, petechiae
an elevated, firm circumscribed area, <1cm
papule
example: wart, elevated moles, lichen planus
a flat, non palpable, irregularly shaped macule >1cm
Patch
example: vitiligo, port wine stains, Mongolian spots, cafe au lait