Integumentary System Type of Lesion

Crust

Scab

cyst

sac-like structure has thick walls, and generally contains

pus, or some type of semi-solid material

erosion

what it looks like under the scab

Fissure

groove or crack

Mascule

Flat lesion, freckle

Nodule

raised lesion, lymph node

Papule

smaller raised lesion, pimple

Polyp

growth from a mucous membrane, these can be found in the nose, colon, uterus, and more. There are 2 types: pedunculated, where the polyp has a ‘stalk’, (think of the stick trees you drew as a child), and sessile, where essentially the polyp is a small hill, with no definitive side

Pustule

a papule with puss

Ulcer

an open sore, deeper than an erosion

Vesicle

small collection of clear fluid, blister, or a chicken pox

Wheal

swollen papule that may, or may not, have an accompanying rash, usually itch, and are seen in hives and insect bites (mosquito)

Acne

hair follicles are plugged with dead skin cells and oil

Alopecia

Baldness

Cellulitus

bacterial infection under the skin, staphylococcus or streptococcus bacteria enter through an opening and cause the infection

Ecchymosis

bruising (larger than 10mm)

Eczema

itchy, red, patchy, dry skin caused by inflammation

Gangrene

tissue death due to loss of blood supply, visible as blackened tissue

Hematoma

Bruising

Impetigo

contagious skin condition with distinctive sores that burst and crust

Keloid

Abnormal scarring, raised scar

Nevus

Mole

Petechia

small pinpoint hemorrhage

Pruritus

Itching

Psoriasis

red, scaly, itchy patches of skin

scabies

contagious skin condition caused by itch mites that burrow under the skin

Tenia

caused by fungus

Urticaria

hives

verruca

wart

Vitiligo

lack of pigmentation, think of Michael Jackson’s condition

Apoptosis

when cells do not die as they should

Melenoma

Most dangerous type of skin cancer

ABCD’s of skin cancer

Asymmentry

Border

Color

Diameter

Evolving

Necrosis

premature, uncontrolled death of cells and living tissue in the body

Candidiasis

common fungal infection caused by a yeast called Candida

cicatrix

a scar left behind after a wound has healed

dermatophyte

a group of fungi that feed on keratin, a protein found in your skin, hair, and nails

kaposi sarcoma

type of cancer that forms in the lining of blood vessels and lymph vessels, causing abnormal patches or lumps

pediculosis

infestation of the skin or hair by lice

scleroderma

rare autoimmune condition that causes your body to produce too much collagen, leading to the hardening and thickening of the skin

squamous cell carcinoma

common type of cancer that begins in squamous cells

furuncle

boil

luekoplakia

medical condition that causes thick, white or gray patches to form on the inside of the mouth

subungual

situated or occurring underneath a fingernail or toenail

turgor

normal state of fullness, swelling, or rigidity in a living cell or tissue caused by internal water pressure

xeroderma

abnormally dry, rough, and scaly skin