-
collection of dried serum and cellular debris
crust
-
thick-walled, close sac or pouch containing fluid or semisolid material
cyst
-
wearing away or loss of epidermis
erosion
-
groove or crack-like sore
fissure
-
flat lesion measuring less than 1cm in diameter
macule
-
solid, round or oval elevated lesion 1 cm or more in diameter
nodule
-
small (less than 1 cm in diameter), solid elevation of the skin
papule
-
growth extending from the surface of mucous membrane
polyp
-
papule containing pus
pustule
-
open sore on the skin or mucous membrane
ulcer
-
small collection (papule) of clear fluid (serum); blister
vesicle
-
smooth, edematous (swollen) papule or plaque that is redder or paler than the surrounding skin
wheal
-
absence of hair from areas where it normally grows
alopecia
-
bluish-purplish mark (bruise) on the skin
ecchymosis, ecchmymoses
-
small, pinpoint hemorrhage
petechia, petechiae
-
-
acute allergic reaction in which red, round wheals develop on the skin
urticaria
-
chronic papular and pustular eruption of the skin with increased production of sebum
acne
-
diffuse, acute infection of the skin marked by local heat, redness, pain, and swelling
cellulitis
-
inflammatory skin disease with erythematous, papulovesicular lesions
eczema
-
rash (exanthem) of the skin due to a viral infection
exanthematous viral diseases
-
death of tissue associated with loss of blood supply
gangrene
-
bacterial inflammatory skin disease characterized by vesicle, pustules, and crusted-over lesions
impetigo
-
chronic, recurrent dermatosis marked by itchy, scaly, red plaques covered bysilvery gray scales
psoriasis
-
contagious, parasitic infection of the skin with intense pruritis
scabies
-
chronic progressive disease of the skin and internal organs with hardening and shrinking of connective tissue
scleroderma
-
chronic autoimmune inflammatory disease of collagen in skin, joints, and internal organs
systemic lupus erythematosus (SLE)
-
infection of the skin caused by a fungus
tinea
-
loss of pigment in areas of the skin
vitiligo
-
increased growth of cells in the keratin layer of the epidermis caused by pressure or friction
callus
-
hypertrophied, thickened scar developing after trauma or surgical incision
keloid
-
thickened and rough lesion of the epidermis; associated with aging or skin damage
keratosis
-
white, thickened patches on mucous membrane tissue of the tongue or cheek
leukoplakia
-
pigmented lesion of the skin
nevus, nevi
-
epidermal growth (wart) caused by a virus
verruca
-
malignant tumor of the basal cell layer of the epidermis
basal cell carcinoma
-
malignant tumor of the squamous epithelial cells in the epidermis
squamous cell carcinoma
-
cancerous growth composed of melanocytes
malignant melanoma
-
malignant, vascular, neoplastic growth characterized by cutaneous nodules
kiaposi sarcoma
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