Basic Dermatological Lesions Flashcards
To learn more characteristics of lesions
Macules
A circumscribed flat area less than 1 cm of discoloration without elevation or depression of surface relative to surrounding skin
Patches
A circumscribed area of discoloration, greater than 1 cm, which is neither elevated or depressed relative to the surrounding skin
A circumscribed, elevated, solid lesion, less than 1 cm
Papules
Plaques
A well-circumscribed, elevated, superficial, solid lesion, greater than 1 cm in diameter
Nodules
A palpable, solid lesion, greater than 1 cm in diameter. These are usually found in the dermal or subcutaneous tissue, and the lesion may be above, level with, or below the skin surface
Tumors
- Solid, firm lesions
- typically > 2 cm that can be above, level with, or beneath the skin surface.
- aka mass.
Wheals (Hives)
Transient, circumscribed, elevated papules or plaques, often with erythematous borders and pale centers.
Vesicles (Blisters)
A small, superficial, circumscribed elevation of the skin, less than 0.5 cm, that contains serous fluid
A raised, circumscribed lesion greater than 0.5 cm that contains serous fluid
Bullae
A small (< 1 cm in diameter), circumscribed superficial elevation of the skin that is filled with purulent material. Can also be described as a vesicle filled with pus
Pustules
Example of Macules
Freckles
Example of nodules
trichoepithelioma
example of patch
vitiligo
Example of Papule
syringoma, miliara rubra
Herpes zoster is an example of a
Vesicle
