Lesions Flashcards
1
Q
Macule
A
- Flat
- Pigmented
- Circumscribed
- <1 cm
(ex. freckle, measles, moles)
2
Q
Patch
A
- flat
- pigmented
- non-circumscribed
- > 1 cm
(ex. port-wine stains, cafe au lait spots)
3
Q
Papule
A
- firm
- raised
- <1 cm
- same color as skin
(-Ex. wart, elevated mole)
(possibly inflammatory)
4
Q
Nevus
A
- circumscribed lesion
- birthmark/beauty mark
5
Q
Plaque
A
- silvery
- elevated
- firm
- rough lesion
- flat-top
- > 1 cm
-(psoriasis)
6
Q
Scale
A
- heaped up, keratinized cells
- flaky skin
- irregular
- thick/thin, dry/oily
- various size
7
Q
Lichenification
A
- rough, thickened epidermis
- secondary to persistent rubbing/itching/irritation
- flexor surface
-(ex. chronic dermatitis/skin inflam)
8
Q
Wheal
A
- raised
- firm lesion
- intense localized skin edema
- disappears in hours
- varying size/shape
(Ex. bug bite/allergic reaction)
9
Q
Vesicle
A
- raised
- circumscribed
- fluid filled
- <1 cm
-(ex. vericella-chicken pox)
10
Q
Pustule
A
- same as vesicle but filled with purulent fluid
- (ex. acne)
11
Q
Nodule
A
- firm
- raised
- 1-2 cm
- extends into dermis
-(Ex. lipoma)
12
Q
Cyst
A
- elevated
- circumscribed
- encapsulated lesion
- dermis/subq layer
- filled with fluid/semisolid material
-(ex. sebaceous cyst)
13
Q
Bulla
A
- raised
- circumscribed
- fluid filled
- > 1 cm
-(ex. blister)
14
Q
Scar
A
- evidence of prior tissue damage
- solely connective tissue
- doesn’t extend beyond borders of original wound
15
Q
Keloid
A
- evidence of prior tissue damage
- solely connective tissue but highly active
- beyond borders of original wound
16
Q
Erosion
A
- loss of part of epidermis
- depressed, moist, glistening
- can follow rupture of vesicle or bulla
17
Q
Telangiectasia
A
- fine irregular lines produced by capillary dilation
- (ex. rosacea, spider veins)
18
Q
Excoriation
A
- loss of epidermis
- linear
- hollowed out
- crusted
-(Ex. abrasion/scratch)
19
Q
Fissure
A
- linear crack/break from epidermis to dermis
- may be moist/dry
-(ex. athlete’s foot)
20
Q
Scar
A
-thin/thick fibrous tissue that replaces normal skin following injury or laceration to dermis
21
Q
Keloid
A
- irregular shaped, elevated, progressively enlarging scar
- grows beyond boundries of wound
- excess collagen formation
22
Q
Tumor
A
- elevated, solid lesion
- clearly demarcated
- deeper in dermis
- greater than 2cm diameter
-(ex. neoplasms, hemangioma)
