Question | Answer |
plaque | discrete, solid, elevated body usually broader than it is thick, > 0.5cm in diameter |
papule | discreet, elevated, solid usually <0.5cm |
macule | flat skin or mucus membrane different color from surrounding area, <0.5cm May have fine, non palpable scale |
patch | flat skin or mucus membrane different color from surrounding skin, >0.5cm May have fine, non palpable scale |
nodule | dermal or subcutaneous firm, well defined lesion usually >0.5cm in diameter |
cyst | a closed cavity or sac containing fluid or semisolid material, may have epithelial, endothelial, or membranous lining |
crust | hardened layer resulting from dried serum, blood or purulent exudate on the skin surface. Color depends on what the material is |
scale | excess stratum corner accumulated in flakes or plates. usually has a white or gray color |
abcess | localized accumulation of pus in the dermis or subcutaneous tissue, often red, warm and tender |
bulla | fluid filled blister >0.5cm in diameter. fluid can be clear, serous, hemorrhagic, or pus |
pustule | circumscribed elevation that contains pus, usually <0.5 cm in diameter |
vesicle | fluid filled cavity or elevation <0.5cm in diameter, fluid can be clear, serous, hemorrhagic, or pus |
erythroderma | generalized blanch able redness of the skin that may be associate with desquamation |
purpuric | palpable purpura raised and palpable, nonblanchable, red or violaceous discoloration of skin or mucous membrane due to vascular inflammation in the skin and extravasation of RBC's |
atrophy | thinning of tissue defined by it's location, such as epidermal atrophy, dermal atrophy, or subcutaneous atrophy |
ulcer | circumscribed loss of the epidermis and at least upper dermis, also classified by depth, border, shape, edge and tissue at the base |
erosion | localized loss of the epidermal or mucosal epithelium |
gangrene | necrotic usually black tissue due to obstruction, diminution, or loss of blood supply, may be wet or dry |
eschar | an adherent, thick, dry black crust |
proctectomy | removal of rectum |