Flashcards in Cutaneous Gross Anatomy Deck (44)
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1
Define: macule
flat, non-palpable lesion <1cm
2
Define: papule
elevated, solid, palpable lesion <1cm in diameter
3
Define: patch
flat, non palpable lesion >1cm in diameter that arises de novo or through coalescence of macules
4
Define: Plaque
elevated, solid, palpable lesion >1cm that arises de novo or through coalescence of papules
5
Define: pustule
pus containing lesion, usually small but can coalesce
- not synonymous with infection!
6
Define: vesicle
liquid or fluid filled (not pus) lesion that is <1cm in diameter
7
Define: Bulla
liquid or fluid filled (not pus) lesion that is >1cm in diameter
8
Define: Nodule
solid, palpable lesion with significant depth. Usually >1cm and extend into the dermis and/or subcutis
9
Define: Cyst
sac containing fluid or semisolid material (cells or cell products)
usually in the dermis and sub-cutis
10
Define: erythema nodosum
tender, red nodules on the shins
- have a certain amount of depth
reaction pattern common when a patient is on certain drugs, has chronic disease, or cancer
11
Define: wheals/hives
transient (<24hours) well circumscribed papules and/or plaques seen in urticaria
Due to dermal edema and are usually pruritic
12
Define: telangiectasis
dilated superficial dermal vessel
13
Define: purpura
hemorrhage into the skin --> appears purple
non-blanchable
14
Define: petechiae
tiny pinpoint purpura present in the dermis
15
Define: ecchymosis
Larger scale hemorrhage into the skin (ie. bruising)
16
Define: comedone
dilated pore that contains keratinous debris
- can be open: "blackhead"
- can be closed "whiteheads"
17
Define: milium
Small superficial white coloured cyst containing keratin (usually <1-2 mm in size)
18
Define: burrow
small threadlike curvilinear papules that is pathognomonic of scabies.
Will be VERY itchy and can be found on the genitals and hands
19
Defnine: secondary lesion
lesions that appear as a results of alteration or evolution of a primary lesion (rubbing, scratching, trauma)
20
Define: scale
accumulation or excess shedding of stratum corneum
present in a broad scale of conditions due to epidermal inflammation
21
Define: crust
died exudate (blood. serum, pus) on the skin surface (ie. a scab)
22
Define: lichenification
an increase in skin lines/creases produced by chronic rubbing/scratching
23
Define: maceration
Softening and whitening of skin that is kept constantly wet
24
Define: hyperkeratosis
accumulation of keratin on the skin surface, usually adherent and compact
25
Define: fissure
a linear crack in the skin, often very painful
26
Define: excoriation
loss of skin due to scratching or picking
27
Define: erosion
superficial open wound
- loss of epidermis or mucosa only
- usually heals without scarring
28
Define: ulcer
deeper open wound with partial or complete loss of dermis or submucosa
- usually heals with scarring
29
Define: atrophy
thinning or diminution of epidermal, dermal, and/or subcutaneous tissue
Present with liner lesions along skin tension lines = striae
30