Chapter 16 Pathology Flashcards
Crust`
Dried sebum or cellular debris
Cyst
Thick-walled, closed sac or pouch containing fluid or semisolid material
Erosion
wearing away or loss of epidermis
Fissure
groove or crack-like sore
Macule
flat, pigmented lesion measuring less than 1 cm in diameter
Example of macule
patch
Nodule
solid, round or oval elevated lesion 1 cm or larger in diameter
Example of nodule
enlarged lymph node
Papule
small, solid elevation of the skin
Example of papule
pimples
Polyp
growth extending from the surface of mucous membrane
Pustule
papule containin pus
Example of pustule
abcess
Ulcer
open sore on the skin or mucous membranes
Vesicle
small collection of clear fluid
Large vesicle
bulla
Wheal
smooth swollen papule/plaque that is centrally redder or paler than the surrounding site
Example of wheal
allergic reactions