Chapter 16: Cutaneous Lesions

Front 1

lesion

Back 1

an area of abnormal tissue anywhere on or in the body. may be caused by disease or trauma

Front 2

crust

Back 2

collection of dried serum and cellular debris
ex: scab that forms form the drying of a body exudate like eczema

Front 3

cyst

Back 3

thick-walled, closed sac or pouch containing fluid or semisolid material
ex: pilonidal cyst; found over the sacral area of the back in the midline and contains hairs
sebaceous cyst; a collection of yellowish sebum found on the scalp, vulva and scrotum

Front 4

erosion

Back 4

wearing away or loss of epidermis
occur from inflammation or inury but no scarring

Front 5

fissure

Back 5

groove or crack-like sore

Front 6

macule

Back 6

flat lesion measuring less than 1 cm in diameter
Ex: freckles, tattoo marks and flat moles.
patch-large macule larger than 1cm in diameter

Front 7

nodule

Back 7

solid, round or oval elevated lesion 1cm or more in diameter.

Front 8

papule

Back 8

small (less than 1 cm in diameter) solid elevation of the skin. can run together and form plaques; elevated flat lesions
Ex; pimples

Front 9

polyp

Back 9

growth extending from the surface of mucous membrane
found commonly in the nose and sinuses, colon, urinary bladder, and uterus

Front 10

pustule

Back 10

papule containing pus
is a small abscess (collection of pus) on the skin

Front 11

ulcer

Back 11

open sore on the skin or mucous membranes (deeper than an erosion)
-Decubitus ulcers (bedsores)-caused from pressure from lying in one position, loss of tissue and pus or exudate formation

Front 12

vesicle

Back 12

small collection (papule) of clear fluid (serum); blister
form in burns, allergies, and dermatitis
Ex: bulla; a large vesicle

Front 13

wheal

Back 13

smooth, edematous (swollen) papule or plaque that is redder or paler than the surrounding skin
accompanied by itching and are seen in hives, anaphylaxis and insect bites.