 | Term | Definition |
| |
macules |
Nonraised, discolored spots less than 1 cm in diameter |
| |
papules |
Elevated lesion less than 1 cm in diameter |
| |
plaques |
Elevated and circumscribed patches more than 1 cm in diameter |
| |
bullae |
Blisters greater than 1 cm and filled with clear fluid |
| |
vesicles |
Blisters less than 1 cm and filled with clear fluid |
| |
pustules |
Vesicles filled with cloudy fluid or pus |
| |
wheals |
Elevated, irregularly shaped lesion is seen in urticaria (hives), an allergic skin eruption |
| |
atrophy |
Wasting of the epidermis; skin appears thin and transparent |
| |
ulcer |
Irregularly shaped erosions that extend into the dermis |
| |
fissures |
Deep linear splits through the epidermis into the dermis |
