Symptomatic Terms Flashcards
lesion
an area of pathologically altered tissue
primary lesions
lesions arising from previously normal skin
macule or macula
a flat, discolored spot on the skin up to 1cm across
EX: freckles
patch
a flat, discovered area on the skin larger than 1cm
EX: Vitiligo
papule
a solid mass on the skin up to 0.5cm in diameter
EX: mole
plaque
a solid mass greater than 1cm in diameter and limited to the surface of the skin
nodule
a solid mass greater than 1cm that extends deeper into the epidermis
tumor
a solid mass larger than 1-2cm
wheal
an area of localized skin edema
EX: Hive
vesicle
an elevated, fluid filled sac within or under the epidermis up to 0.5cm in diameter
EX: a fever blister
bulla
a blister larger than 0.5cm
EX: second degree burn
bulla = bubble
pustule
a pus filled sac
EX: pimple
secondary lesions
lesions that result in changes to primary lesions
erosion
loss of superficial epidermis but no bleeding
ulcer
an open sore on the kin or mucous membrane that can bleed and scar; sometimes with infection
excoriation
scratch mark
vascular lesions
lesions of a blood vessel
cherry angioma
small, round bright red blood vessel tumor on the skin
telangiectasia
a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels radiating from a central arteriole, most commonly on the face, neck or chest
purpuric lesions
lesions resulting from hemorrhages into the skin
petechia
spot; reddish-brown, minute hemorrhagic spots on the skin that indicate a bleeding tendency
ecchymosis
bruise
cicatrix of the skin
a mark left by the healing of a sore or wound, showing the replacement of destroyed tissue by fibrous tissue
cicatrix = scar
keloid
an abnormal overgrowth of scar tissue that is thick and irregular
neoplasm
abnormal tissue that grows by more rapid than normal cellular proliferation
nevus
a benign localized overgrowth of melanin forming cells on the skin present at birth or appearing early in life that cna be epidermal or vascular; aka a mole
dysplastic nevus
a mole with precancerous changes
verruca
an epidermal growth caused by a papilloma virus; wart
