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Vesicle (aka Blister)
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Vesicle (aka Blister)

Definition
  • Bullae are circumscribed, elevated collections (pockets) of fluid within the skin that are > 1 cm in diameter.
    • Vesicles are < 1 cm.
Notes
  • Blister is the broadly encompassing term for both bullae and vesicles. Blisters contain fluid of any type: clear, serous, hemorrhagic, or purulent.
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