Med Term DDT Chap 3 p.1

urticaria

hives; eruption of wheals with severe itching

eschar

thick layer or dead tissue over a deep burn area

nodule

firm, sold mass larger than 0.5 cm

wheal

small, round, swollen area; typical of allergic skin reaction

pustule

raised spot on skin containing pus

pyoderma

having pus on or within the skin

contusion

injury caused by a blow; causes swelling, pain, and bruising

hyperemia

redness of skin due to increased blood flow

seborrhea

oily discharge

pallor

abnormal paleness of skin

onychomalacia

softening of nails

scleroderma

hardened skin

depigmentation

loss of normal skin color

ulcer

open sore in skin

hyperhidrosis

excessive sweating

lipoma

fatty mass

macule

flat, discolored spot on skin

bulla

a large blister

cyst

fluid-filled sac under skin

vesicle

small, fluid-filled, raised spot; blister

erythroderma

having reddened or flushed skin

fissure

crack-like lesion on the skin

abrasion

friction scraping away skin surface

hyperpigmentation

abnormal amount of pigmentation

disphoresis

profuse sweating

comedo

hardened sebum in hair follicle; blackhead

hirsutism

excessive hair growth

petechiae

spots from minute hemorrhages

ecchymosis

blood collecting under skin following blunt trauma; a bruise

gangrene

tissue necrosis due to loss of blood flow

squamous cell carcinoma (SCC)

cancer of epidermis layer; may invade deeper tissues and metastasize

acne vulgaris

common form of teenage acne with comedos, papules, and pustules

cellulitis

diffuse acute infection of connective tissue of skin

vitiligo

disappearance of pigment from skin in patches; causes milk-white lesions

tinea pedis

fungal infection on foot; athlete’s foot

tinea capitis

fungal infection on scalp; ringworm

decubitus ulcer (decub)

open sore caused by pressure over bony prominences; cause by loss of blood flow to skin

sebaceous cyst

sebum filled sac under the skin

abscess

collection of pus in skin

acne

inflammation of sebaceous glands and hair follicles with papules and pustules

Kaposi’s sarcoma

skin cancer seen in AIDS patients; brownish-purple lesions

malignant melanoma (MM)

dangerous form of cancer; begins in melanocytes; quickly metastasizes

ichthyosis

skin becomes dry, scaly, and keratinized

eczema

superficial dermatitis; redness, vesicles, itching, and crusting

rubella

contagious viral infection; German measles

tinea

fungal infection; itching and scaling lesions

verruca

warts; benign growth causes by a virus

wet gangrene

area of gangrene with secondary bacterial infection and pus

keratosis

condition of excessive growth and thickening of epidermis layer

dry gangrene

late stages of gangrene; affected area becomes dried, blackened, and shriveled

laceration

torn or jagged wound

systemic lupus erythematosus (SLE)

chronic disease of connective tissue; injures skin, joints, and kidneys; produces red, scaly butterfly rash

papule

small, solid raised spot smaller than 0.5 cm

pruritus

severe itching

photosensitivity

abnormal skin reaction to light

xeroderma

abnormally dry skin

erythema

red flushing of skin

purulent

infection producing pus; pus contains dead bacteria, white blood cells, and tissue debris

necrosis

condition of cell or tissue death

leukoderma

white skin from lack of skin pigment

anhidrosis

condition of producing no sweat

lesion

general term for an injury or abnormality

suppurative

containing or producing pus

purpura

skin hemorrhage due to fragile blood vessels

nervus

pigmented skin blemish, birthmark, or mole; usually benign