Template:Primary derm lesions names

Dermatology Nomenclature

Macule and patch

Small lesions (<0.5cm)

• Macule – flat, cirumscribed, colored, non palpable
• Papule – raised, solid and palpable
• Vesicle – raised, palpable, clear fluid-filled
• Pustule – raised, palpable, pus filled (leukocytes or keratin)

Large lesions (>0.5cm)

• Patch – large macule (flat non-palpable colored area)
• Plaque – superficially raised, circumscribed solid area
• Nodule – distinct large papule
• Bulla - large vesicle (blisters if epidermal layer completely sloughed off)
• Wheal – firm and edematous plaque (edema of the dermis)

Other

• Plaque/scaley papule
• Eschar
• Erosion/ulcer
• Purpura/petechia
• Plaque/smooth papule