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52 Cards in this Set

  • Front
  • Back
primary lesion develop from
previously unaltered skin
macule
flat area less than .5 in diameter
ex freckle
papule
elevated solid less than .5 in diameter
ex mole wart
vesicle
fluid filled less than .5 in diameter
ex chicken pox
plaque
elevated greater than .5
psoriasis
seborrheic
wheal
firm ir shape
ex bug bite
pustule
purulent fluid
ex zit
secondary skin lesion
skin lesion that changes with time or occur because of scratching or infection
fissure
break in epidermis to dermis
-athletes foot
-crack corner of mouth
scale
excess dead epidermal cells
-flaked skin after drug reaction or sunburn
scar
abrnomal formation of connective tissue
-surgical scar
-healed wound
ulcer
loss epidermis extend to dermis
- P ulcer
-chancre
atrophy
depression of skin
-striae
-aged skin
excoriation
area epidermis missing that exposes dermis
-scratch
dark skinned pts
-cyanosis
-ecchymosis
cyanosis- ashen gray seen conjunctiva eye mucous membrane nail beds
-ecchymosis- purple brown to black
dark skinned pts
-erythema
-jaundice
erythema- deeper brown to purple tone increased temperature
- jaundice-yellow green sclera eye palm hands soles feet
dark skinned pts
-pallor
-petechiae
-rash
pallor- underlying red tone absent
-petechiae- buccal mucosa conjunctiva eye
-rash- may be felt
asymmetric
unilateral distribution
confluent
merge together
diffuse
wide distribution
discrete
seperate form other lesions
generalized
diffuse distribution
grouped
cluster
localized
limited areas clearly defined
solitary
single lesion
symmetric
bilateral
zosteriform
bandlike distribution
alopecia
loss hair
angioma
tumor of bl or lymph vessels
carotenemia
yellow discolor of skin not in sclera
comedo
enlarged hair follicle plugged with sebum bacteria skin cells
cyst
sac filled fluid
hirsutism
too much hair
hypopigmentation
loss pigmentation cause lighter areas
lichenification
thickening of skin
nevus
benign overgrowth of melanocytes
petechiae
pinpoint destribution of blood
telangiectasia
visibly dilated small blood vessels
varicosity
increased sight of superficial veins
vitiligo
complete absence of melanin
Naevus of Ota
slate gray birthmark on forehead
main diagnostic technique for skin lesion
direct visualization
what test is most common for diagnosis
biopsy test
types of biopsy techniques
punch
shave
excisional
incisional
punch
oval core from center of lesion includes dermis and some far
provide full thickness
shave
cuts lesion above skin line leaves lower dermal layers
good for thin specimen
excisional
remove small lesion
used rapidly expanding lesion
incisional
wedge shaped incision made in lesion thats too large for excisional
potassium hydroxide testing
identify fungal infections
scrape scale from skin mix with KOH heat on a slide
POSTIVE- spores appear
Tzanck test
vesicular fluid or exudate from ulcer smeared to glass slide and stained
used diagnos herpes
patch test
identify cause allergic contact sensitization use sample common allergens to look for pos reaction
-leave patch on 48 hours unless pain itching
woods lamp
used for fungal infection, vitiligo, pseudomonas organisms