-
Macule
- flat, not palpable, less than 1cm.
- ex. freckle,
- cause: scarlet fever
-
patch
flat, not palpable, greater than 1 cm
vitiligo
-
papule
elevated, palpable, less than 1 cm
-
plaque
elevated, firm, rough with flat top, greater than 1cm
-
nodule
deeper, firmer than papule, palpable 1-2 cm
-
tumor
elevated, soild, deeper in dermis, greater than 2 cm
-
vesicle
serous fluid-filled, elevated, less than 1cm
-
bulla
serous fluid-filled, elevated, greater than 1cm
-
pustule
filled with puss, elevated
-
cyast
filled with liquid or semi solid material, elevated
-
wheal
transitory palpable lesion
-
telangiectasia
fine, irregular red lines due to capillary dilation
-
crust
(scab) dried-puss, lymph or blood
-
erosion
depression, moist, glistening
-
scar
fibrous tissue that relaces normal skin after an injury
-
keloid
excessive collogen formation during healing, never goes away
-
excoriation
loss of epidermis, depressed
-
fissure
crack from epidermis to dermis
-
-
acne vulgaris
- Acute or chronic inflamatory process of subaceous glands.
- TX: cleaning and scrubbing with soap twice a day, topical or systemic antibiotics , accutane
-
papulopustular
papules and pustules
-
acne rosaccea
- occurs in 40-60y/o, pronounced erythema superfical pustules and papules over cheeks,
- TX: tretracycline, avoid excessive consumption of alcohol
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