Dermatology Flashcards
Primary skin lesion defined
from a disease process and has not been manipulated by outside tx.
vesicle
Secondary skin lesion defined
lesions altered by outside manipulation or tx
crust: occurs when vesicle ruptures
Macule defined
flat
nonpalpable
Papule defined
solid elevation
< 1 cm
raised nervus
Vesicle defined
fluid filled
< 1cm
varicella
herpatic lesion
Pustule defined
vesicle-like lesion with purulent drainage
< 1 cm
impetigo
Patch defined
flat
nonpalpable
> 1cm
vitiligo
Plaque defined
raised
same or different color of skin
> 1cm
psoriasis vulgaris
Bulla defined
fluid filled
> 1 cm
2 degree burn, necrotizing facitis
Cyst defined
raised encapsulated fluid-filled any size intradermal cyst
Wheal defined
circumscribed area of skin edema
any size
hive
Purpura defined
flat
red-purple discoloration caused by RBCs lodged in skin
if < 1cm called petechiae
Auspits sign
pinpoint bleeding when scale removed
Excoriation defined
secondary lesion linear raised covered in crusts any size scratch marks
Crust defined
secondary lesion
raised lesion produced by dried serum or blood
any size
scab
Lichenification defined
secondary lesion
skin thickening found of pruitic areas
any size
callus
Scales defined
secondary lesion
raised superficial lesions that flake with ease
any size
dandruff
Erosion defined
secondary lesion
loss of epidermis
> 1cm
open bulla or vessicle
Ulcer defined
secondary lesion
loss of epidermis and dermis
> 1 cm
chancre
Fissure defined
secondary lesion
narrow linear crack into epidermis exposing the dermis
> 1 cm
athletes foot