Basic Categories

History & Physical

Terminology

Examples

Morphology of the lesion

• Macule: area of altered color without change in elevation or texture.
• Papule: raised solid lesion < 5mm diameter.
• Nodule: raised solid lesion > 5mm diameter.
• Plaque: plateau-like solid elevation.
• Vesicle: fluid filled lesion < 5mm diameter.
• Bulla: fluid filled lesion > 5mm diameter.
• Wheal: transient, localized area of edema and reddening.
• Scale: thickened area of stratum corneum.
• Crust: dried serum or pus
• Ulcer: localized area of denuded skin

How about some examples?